* Added Platform utils to detect platform type
* Added additional build for WebWorker
* Changed env param from webworker to platform to make ability to specify platform to the build script
* Updated the readme file with SignalR WebWorker instructions

The BufferWriter called GetMemory(count) and dropped the result, only to then call GetSpan(). This moves the count argument to GetSpan, and drops the call to GetMemory.

* Unset reserved bit when setting 31 bit uint values

* Add FrameWriter tests

* Add overload

* Randomize MockSystemClock

`infiniate` => `infinite` in ArgumentOutOfRangeException message.

* Moves the Synchronization context from the remote renderer to the base renderer.
* Removes all the locking from the base renderer.

[automated] Merge branch 'release/2.2' => 'master'

* Fix discrepancy between Version.Details.xml and Versions.props
* Add step to CodeCheck to ensure Version.Details.xml and Versions.props match

Install the .NET Core SDK into the repo root instead of UserProfile and 'install' copy of AspNetCore shared framework (#7293)

This is required to workaround several limitations in the way the .NET Core SDK finds shared frameworks and targeting packs. It allow tests to use shared frameworks and targeting packs.

It also matches the patterns established in other aspnet and dotnet repos. This should reduce the friction required to adopt Arcade SDK.

## Changes

* This moves the default location of the .NET Core SDK installation into `$repoRoot/.dotnet`. This location was already in use for CI builds. 
* Update the build step for Microsoft.AspNetCore.App to install the shared framework into the local copy of the .NET Core SDK

## Recommendations

* Use the "startvs.cmd" script to launch Visual Studio. This will set required environment variables to make VS happier than if you just double click the .sln file.
* Use "activate.sh/ps1" if you want to run `dotnet build`, `dotnet test` and other dotnet commands. These will set required environment variables, including PATH.
* I recommend removing %USERPROFILE%/.dotnet to your PATH variable if you had added it manually before. This will no longer match what build tools will install.
* `git clean -xfd -e .dotnet/` preserves the folder so you don’t have to re-download the SDK again.

Updating the DotNetLogo bitmaps' purple color to .Net core's latest branding

Uses the `ASPNETCORE_STARTUP_SUSPEND_EVENT` environment variable to get an event name.

Fixes: https://github.com/aspnet/AspNetCore/issues/6972

Move bootstrap 3.3 to 3.4 in samples

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190129.2

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19079-02
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19079-02
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19079-02
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19079-02

* Update dependencies from https://github.com/dotnet/corefx build 20190129.11

This change updates the following dependencies
- System.ComponentModel.Annotations - 4.6.0-preview.19079.11
- Microsoft.CSharp - 4.6.0-preview.19079.11
- Microsoft.Win32.Registry - 4.6.0-preview.19079.11
- System.Runtime.CompilerServices.Unsafe - 4.6.0-preview.19079.11
- System.Security.Cryptography.Cng - 4.6.0-preview.19079.11
- System.Reflection.Metadata - 1.7.0-preview.19079.11
- System.Security.Cryptography.Pkcs - 4.6.0-preview.19079.11
- System.Security.Cryptography.Xml - 4.6.0-preview.19079.11
- System.Security.Permissions - 4.6.0-preview.19079.11
- System.Security.Principal.Windows - 4.6.0-preview.19079.11
- System.ServiceProcess.ServiceController - 4.6.0-preview.19079.11
- System.Text.Encodings.Web - 4.6.0-preview.19079.11
- System.Threading.Channels - 4.6.0-preview.19079.11
- System.Data.SqlClient - 4.7.0-preview.19079.11
- System.Diagnostics.DiagnosticSource - 4.6.0-preview.19079.11
- System.Diagnostics.EventLog - 4.6.0-preview.19079.11
- System.Net.Http.WinHttpHandler - 4.6.0-preview.19079.11
- System.Net.WebSockets.WebSocketProtocol - 4.6.0-preview.19079.11
- System.Numerics.Vectors - 4.6.0-preview.19079.11
- System.IO.Pipelines - 4.6.0-preview.19079.11

* Update dependencies from https://github.com/dotnet/core-setup build 20190129.4

This change updates the following dependencies
- Microsoft.DotNet.PlatformAbstractions - 3.0.0-preview-27329-4
- Microsoft.Extensions.DependencyModel - 3.0.0-preview-27329-4
- Microsoft.NETCore.App - 3.0.0-preview-27329-4

* Update dependencies from https://github.com/aspnet/EntityFrameworkCore build 20190129.4

This change updates the following dependencies
- dotnet-ef - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore.Tools - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore.InMemory - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore.Relational - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore.Sqlite - 3.0.0-preview.19079.4
- Microsoft.EntityFrameworkCore.SqlServer - 3.0.0-preview.19079.4

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190130.2

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19080-02
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19080-02
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19080-02
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19080-02

* Update dependencies from https://github.com/dotnet/corefx build 20190130.5

This change updates the following dependencies
- System.ComponentModel.Annotations - 4.6.0-preview.19080.5
- Microsoft.CSharp - 4.6.0-preview.19080.5
- Microsoft.Win32.Registry - 4.6.0-preview.19080.5
- System.Runtime.CompilerServices.Unsafe - 4.6.0-preview.19080.5
- System.Security.Cryptography.Cng - 4.6.0-preview.19080.5
- System.Reflection.Metadata - 1.7.0-preview.19080.5
- System.Security.Cryptography.Pkcs - 4.6.0-preview.19080.5
- System.Security.Cryptography.Xml - 4.6.0-preview.19080.5
- System.Security.Permissions - 4.6.0-preview.19080.5
- System.Security.Principal.Windows - 4.6.0-preview.19080.5
- System.ServiceProcess.ServiceController - 4.6.0-preview.19080.5
- System.Text.Encodings.Web - 4.6.0-preview.19080.5
- System.Threading.Channels - 4.6.0-preview.19080.5
- System.Data.SqlClient - 4.7.0-preview.19080.5
- System.Diagnostics.DiagnosticSource - 4.6.0-preview.19080.5
- System.Diagnostics.EventLog - 4.6.0-preview.19080.5
- System.Net.Http.WinHttpHandler - 4.6.0-preview.19080.5
- System.Net.WebSockets.WebSocketProtocol - 4.6.0-preview.19080.5
- System.Numerics.Vectors - 4.6.0-preview.19080.5
- System.IO.Pipelines - 4.6.0-preview.19080.5

* Update dependencies from https://github.com/dotnet/core-setup build 20190130.4

This change updates the following dependencies
- Microsoft.DotNet.PlatformAbstractions - 3.0.0-preview-27330-4
- Microsoft.Extensions.DependencyModel - 3.0.0-preview-27330-4
- Microsoft.NETCore.App - 3.0.0-preview-27330-4

* Update dependencies from https://github.com/aspnet/EntityFrameworkCore build 20190130.1

This change updates the following dependencies
- dotnet-ef - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore.Tools - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore.InMemory - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore.Relational - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore.Sqlite - 3.0.0-preview.19080.1
- Microsoft.EntityFrameworkCore.SqlServer - 3.0.0-preview.19080.1

* Update dependencies from https://github.com/aspnet/Extensions build 20190129.8

This change updates the following dependencies
- Internal.AspNetCore.Analyzers - 3.0.0-preview.19079.8
- Microsoft.Extensions.WebEncoders - 3.0.0-preview.19079.8
- Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Diagnostics.HealthChecks - 3.0.0-preview.19079.8
- Microsoft.Extensions.DiagnosticAdapter - 3.0.0-preview.19079.8
- Microsoft.Extensions.DependencyInjection.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.DependencyInjection - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.Xml - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.UserSecrets - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.KeyPerFile - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.Json - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.Ini - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.FileExtensions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.EnvironmentVariables - 3.0.0-preview.19079.8
- Microsoft.Extensions.FileProviders.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.CommandLine - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.AzureKeyVault - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration - 3.0.0-preview.19079.8
- Microsoft.Extensions.CommandLineUtils.Sources - 3.0.0-preview.19079.8
- Microsoft.Extensions.Caching.StackExchangeRedis - 3.0.0-preview.19079.8
- Microsoft.Extensions.Caching.SqlServer - 3.0.0-preview.19079.8
- Microsoft.Extensions.Caching.Memory - 3.0.0-preview.19079.8
- Microsoft.Extensions.Caching.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.ActivatorUtilities.Sources - 3.0.0-preview.19079.8
- Microsoft.AspNetCore.Testing - 3.0.0-preview.19079.8
- Microsoft.AspNetCore.BenchmarkRunner.Sources - 3.0.0-preview.19079.8
- Microsoft.AspNetCore.Analyzer.Testing - 3.0.0-preview.19079.8
- Microsoft.Extensions.Configuration.Binder - 3.0.0-preview.19079.8
- Microsoft.Extensions.FileProviders.Composite - 3.0.0-preview.19079.8
- Microsoft.Extensions.FileProviders.Embedded - 3.0.0-preview.19079.8
- Microsoft.Extensions.FileProviders.Physical - 3.0.0-preview.19079.8
- Microsoft.Extensions.TypeNameHelper.Sources - 3.0.0-preview.19079.8
- Microsoft.Extensions.Primitives - 3.0.0-preview.19079.8
- Microsoft.Extensions.ParameterDefaultValue.Sources - 3.0.0-preview.19079.8
- Microsoft.Extensions.Options.DataAnnotations - 3.0.0-preview.19079.8
- Microsoft.Extensions.Options.ConfigurationExtensions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Options - 3.0.0-preview.19079.8
- Microsoft.Extensions.ObjectPool - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.TraceSource - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.Testing - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.EventSource - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.Debug - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.Console - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.Configuration - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.AzureAppServices - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Logging - 3.0.0-preview.19079.8
- Microsoft.Extensions.Localization.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Localization - 3.0.0-preview.19079.8
- Microsoft.Extensions.Http - 3.0.0-preview.19079.8
- Microsoft.Extensions.Hosting.Abstractions - 3.0.0-preview.19079.8
- Microsoft.Extensions.Hosting - 3.0.0-preview.19079.8
- Microsoft.Extensions.HostFactoryResolver.Sources - 3.0.0-preview.19079.8
- Microsoft.Extensions.HashCodeCombiner.Sources - 3.0.0-preview.19079.8
- Microsoft.Extensions.FileSystemGlobbing - 3.0.0-preview.19079.8
- Microsoft.JSInterop - 3.0.0-preview.19079.8

* Add json.net reference to UI package directly

* fix new package

* latest package

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190131.3

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19081-03
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19081-03
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19081-03
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19081-03

* Update Versions.props

* Update Versions.props

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190201.4

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19101-04
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19101-04
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19101-04
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19101-04

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190203.1

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19103-01
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19103-01
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19103-01
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19103-01

* Update Versions.props

* Update BasicWebSite.Home.CSharp7View.html

* Update dependencies from https://github.com/aspnet/AspNetCore-Tooling build 20190204.4

This change updates the following dependencies
- Microsoft.AspNetCore.Mvc.Razor.Extensions - 3.0.0-preview-19104-04
- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19104-04
- Microsoft.CodeAnalysis.Razor - 3.0.0-preview-19104-04
- Microsoft.AspNetCore.Razor.Language - 3.0.0-preview-19104-04

* Update dependencies from https://github.com/dotnet/core-setup build 20190204.9

This change updates the following dependencies
- Microsoft.DotNet.PlatformAbstractions - 3.0.0-preview-27404-9
- Microsoft.Extensions.DependencyModel - 3.0.0-preview-27404-9
- Microsoft.NETCore.App - 3.0.0-preview-27404-9

* Update dependencies from https://github.com/aspnet/Extensions build 20190205.3

This change updates the following dependencies
- Internal.AspNetCore.Analyzers - 3.0.0-preview.19105.3
- Microsoft.JSInterop - 3.0.0-preview.19105.3
- Microsoft.Extensions.FileProviders.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Diagnostics.HealthChecks - 3.0.0-preview.19105.3
- Microsoft.Extensions.DiagnosticAdapter - 3.0.0-preview.19105.3
- Microsoft.Extensions.DependencyInjection.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.DependencyInjection - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.Xml - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.UserSecrets - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.KeyPerFile - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.Json - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.Ini - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.FileExtensions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.EnvironmentVariables - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.CommandLine - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.Binder - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.AzureKeyVault - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Configuration - 3.0.0-preview.19105.3
- Microsoft.Extensions.CommandLineUtils.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.Caching.StackExchangeRedis - 3.0.0-preview.19105.3
- Microsoft.Extensions.Caching.SqlServer - 3.0.0-preview.19105.3
- Microsoft.Extensions.Caching.Memory - 3.0.0-preview.19105.3
- Microsoft.Extensions.Caching.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.ActivatorUtilities.Sources - 3.0.0-preview.19105.3
- Microsoft.AspNetCore.Testing - 3.0.0-preview.19105.3
- Microsoft.AspNetCore.BenchmarkRunner.Sources - 3.0.0-preview.19105.3
- Microsoft.AspNetCore.Analyzer.Testing - 3.0.0-preview.19105.3
- Microsoft.Extensions.FileProviders.Composite - 3.0.0-preview.19105.3
- Microsoft.Extensions.FileProviders.Embedded - 3.0.0-preview.19105.3
- Microsoft.Extensions.FileSystemGlobbing - 3.0.0-preview.19105.3
- Microsoft.Extensions.WebEncoders - 3.0.0-preview.19105.3
- Microsoft.Extensions.ValueStopwatch.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.TypeNameHelper.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.Primitives - 3.0.0-preview.19105.3
- Microsoft.Extensions.ParameterDefaultValue.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.Options.DataAnnotations - 3.0.0-preview.19105.3
- Microsoft.Extensions.Options.ConfigurationExtensions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Options - 3.0.0-preview.19105.3
- Microsoft.Extensions.ObjectPool - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.TraceSource - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.Testing - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.EventSource - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.Debug - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.Console - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.Configuration - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.AzureAppServices - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Logging - 3.0.0-preview.19105.3
- Microsoft.Extensions.Localization.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Localization - 3.0.0-preview.19105.3
- Microsoft.Extensions.Http - 3.0.0-preview.19105.3
- Microsoft.Extensions.Hosting.Abstractions - 3.0.0-preview.19105.3
- Microsoft.Extensions.Hosting - 3.0.0-preview.19105.3
- Microsoft.Extensions.HostFactoryResolver.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.HashCodeCombiner.Sources - 3.0.0-preview.19105.3
- Microsoft.Extensions.FileProviders.Physical - 3.0.0-preview.19105.3

* Update Versions.props

* Update Versions.props

* Add a TypeForward for JsonResult
Fixes https://github.com/aspnet/AspNetCore/issues/7220

Fixes https://github.com/aspnet/AspNetCore/issues/7220

Handle PermanentRedirects in PrerenderTagHelpers