[Client bug]: The SDK has no implementation for authentication sign-in preferences

[ErikdeWilde]

Describe the bug
The SDK has no implementation for authentication sign-in preferences, there is no on SignInPreferencesRequestBuilder the AuthenticationRequestBuilder to create a get or update request.

The model does exist:
Microsoft.Graph.Beta.Models.SignInPreferences

so for now I replace the last segment of the url...

To Reproduce
var request = _microsoftGraphClient
.Users[identifier]
.Authentication
.MicrosoftAuthenticatorMethods
.ToGetRequestInformation();

// signInPreferences aren't in the sdk, get any request with the same url and replace it with signInPreferences
request.URI = new Uri(request.URI.AbsoluteUri.Replace(request.URI.AbsoluteUri.Split('/').Last(), "signInPreferences"));

// the model for the signInPreferences is available to parse the result
var result = await request.SendRequest(_microsoftGraphClient, Microsoft.Graph.Beta.Models.SignInPreferences.CreateFromDiscriminatorValue);

[andrueastman]

Transfering to the beta repo

[andrueastman]

Depends on the resolution of microsoftgraph/msgraph-metadata#479