Replaces package references the following packages with local code:

Microsoft.AspNetCore.Certificates.Generation.Sources
Microsoft.Extensions.CopyOnWriteDictionary.Sources 
Microsoft.Extensions.ClosedGenericMatcher.Sources
Microsoft.Extensions.ObjectMethodExecutor.Sources
Microsoft.Extensions.PropertyActivator.Sources
Microsoft.Extensions.PropertyHelper.Sources
Microsoft.Extensions.RazorViews.Sources
Microsoft.Extensions.SecurityHelper.Sources
Microsoft.Extensions.StackTrace.Sources
Microsoft.Extensions.WebEncoders.Sources