Feature: Integrate with Auth0

It would be great to get a kind of support for Auth0, as you already do with the Keycloak integration.

The way Auth0 is authoring access_tokens is a bit more generic than in Keycloak, but with some conventions, I think, it should be doable almost in the same way.

Thanks a lot guys in advance and thanks for your great work!

Start by reading the existing Keycloak integration, then compare its access-token conventions with Auth0's generic token format. Confirm the expected Auth0 conventions and integration scope before implementation; done means Auth0 support works in the same general way as the existing Keycloak integration.

Written by the indexing model from the issue text.