Replace JObject with JsonDocument in Authentication (#7105)

...usicStore/ForTesting/Mocks/Facebook/TestFacebookEvents.cs

...es/MusicStore/ForTesting/Mocks/Google/TestGoogleEvents.cs

...ting/Mocks/MicrosoftAccount/TestMicrosoftAccountEvents.cs

src/Security/Authentication/.gitignore

...okies/samples/CookieSample/Properties/launchSettings.json

...amples/CookieSessionSample/Properties/launchSettings.json

...ity/Authentication/Core/src/JsonDocumentAuthExtensions.cs

src/Security/Authentication/Facebook/src/FacebookHandler.cs

src/Security/Authentication/Google/src/GoogleHandler.cs

...er/samples/JwtBearerSample/Properties/launchSettings.json

...thentication/JwtBearer/samples/JwtBearerSample/Startup.cs

...ntication/MicrosoftAccount/src/MicrosoftAccountHandler.cs

...ntication/MicrosoftAccount/src/MicrosoftAccountOptions.cs

src/Security/Authentication/OAuth/src/ClaimAction.cs

...ntication/OAuth/src/ClaimActionCollectionMapExtensions.cs

...ecurity/Authentication/OAuth/src/CustomJsonClaimAction.cs

src/Security/Authentication/OAuth/src/DeleteClaimAction.cs

...entication/OAuth/src/Events/OAuthCreatingTicketContext.cs

src/Security/Authentication/OAuth/src/JsonKeyClaimAction.cs

...ecurity/Authentication/OAuth/src/JsonSubKeyClaimAction.cs