ASP.NET Web API Quickstart recommends obsolete Auth0 nuget

[DaveA-W]

docs/articles/quickstart/backend/webapi-owin/01-authorization.md recommends the use of Auth0.OpenIdConnectSigningKeyResolver which has been delisted from nuget as containing critical bugs.

This doc needs to be updated to incorporate appropriate information from ASP.NET (OWIN): Migrating to OWIN 4 include correct usage of the Microsoft.Owin.Security.OpenIdConnect and Kentor.OwinCookieSaver nugets.

[CodyMorris]

Thank you for opening this issue, I'm dealing with this right now