proper OpenID connect Microsoft support

[eau-u4f]

Because of all the tenants and the various hacks of microsoft, OpenID connect needs some tweaks as to match proper issuers, reported by @mestrade on implementing oidc with Azure validation errors ends up with this:

invalid iss: https://login.microsoftonline.com/9188040d-6c67-4c5b-b112-36a304b66dad/v2.0 vs issuer: https://login.microsoftonline.com/{tenantid}/v2.0

also ID tokens claims includes microsoft specific fields : tid which can be used, check @mestrade PR #2 for details of the problem.

References:

• https://docs.microsoft.com/en-us/azure/active-directory/develop/v2-protocols-oidc
• https://docs.microsoft.com/en-us/azure/active-directory/develop/id-tokens