Expose cookie extensions, consolidate cookie handling #39968 (#42119)

src/Http/Headers/src/CacheControlHeaderValue.cs

src/Http/Headers/src/SetCookieHeaderValue.cs

src/Http/Http.Abstractions/src/CookieBuilder.cs

src/Http/Http.Abstractions/src/PublicAPI.Unshipped.txt

src/Http/Http.Abstractions/test/CookieBuilderTests.cs

src/Http/Http.Features/src/CookieOptions.cs

src/Http/Http.Features/src/PublicAPI.Unshipped.txt

src/Http/Http/src/Internal/ResponseCookies.cs

src/Http/Http/test/CookieOptionsTests.cs

src/Http/Http/test/ResponseCookiesTest.cs

src/Security/Authentication/test/CookieTests.cs

...y/Authentication/test/OpenIdConnect/OpenIdConnectTests.cs

src/Security/CookiePolicy/src/ResponseCookiesWrapper.cs

src/Security/CookiePolicy/test/CookieChunkingTests.cs

src/Security/CookiePolicy/test/CookieConsentTests.cs

src/Security/CookiePolicy/test/CookiePolicyTests.cs

src/Shared/ChunkingCookieManager/ChunkingCookieManager.cs