Jmprieur/easy authwitout test project (#703)

* First step of the integration of Easy-auth with Microsoft.Identity.Web

* Sign-in and Sign-out now work correctly

* Reverting changes to TokenAcquisition

* Updating the EasyAuth code and adding debugging capabilities

* Improving the developer experience.

* Now works when deployed with EasyAuth "on"

* Cleaning-up

* Removing the test project

* Fixing

* Update src/Microsoft.Identity.Web/EasyAuth/AppServiceAuthenticationBuilderExtensions.cs

Co-authored-by: jennyf19 <jeferrie@microsoft.com>

* Update src/Microsoft.Identity.Web/EasyAuth/AppServiceAuthenticationBuilderExtensions.cs

Co-authored-by: jennyf19 <jeferrie@microsoft.com>

* Update src/Microsoft.Identity.Web/EasyAuth/AppServiceAuthenticationInformation.cs

Co-authored-by: jennyf19 <jeferrie@microsoft.com>

* Update src/Microsoft.Identity.Web/EasyAuth/AppServiceAuthenticationDefaults.cs

Co-authored-by: jennyf19 <jeferrie@microsoft.com>

* renaming (#701)

* renaming

* a few more edits and name changes

* fix error + warnings

* Adding the test app.

* Improvements:
- in the authentication handler, processes both v1.0 and v2.0 IdTokens
- Fixing CA warnings
- Adding a page (Debugging) which explains how to debug the EasyAuth integration locally.

* Addressing PR feedback

Co-authored-by: jennyf19 <jeferrie@microsoft.com>

tests/WebAppCallsMicrosoftGraph/Pages/Debugging.cshtml

@@ -14,14 +14,14 @@
 To debug locally the application as if it was deployed in App services:
 <ol>
     <li>
-        Run the application with Easy auth as deployed, but at the baseUrl/Debugging address (for instance: <a href='https://mdidwebtestforeasyauthintegration.azurewebsites.net/Debugging'>https://mdidwebtestforeasyauthintegration.azurewebsites.net/Debugging</a>)
+        Run the application with App Services authentication as deployed, but at the baseUrl/Debugging address (for instance: <a href='https://mdidwebtestforeasyauthintegration.azurewebsites.net/Debugging'>https://mdidwebtestforeasyauthintegration.azurewebsites.net/Debugging</a>)
     </li>
     <li>
         Copy the following JSon blob into the <b>lauchsettings.json</b> for the profile of your choice, in the <b>environmentVariables</b> section, paste the following:
     </li>
 
     <li>
-        Run Visual Studio with debugging with the profile for which you have added the environement variables.
+        Run Visual Studio with debugging with the profile for which you have added the environment variables.
     </li>
 </ol>