Test mapping of scopes from JWT to Applications

[janhalen]

Acceptance:

A a user that is member of a group existing in Authelia gets access to assets mapped to a group in Application.
Example: The user John that is part of Group A in Authentik gets acess to assets in a corresponding Group A in the Application

[janhalen]

@nicolas-semaphor : Ready for test of criteria in #18

[janhalen]

To enable mapping of scopes from the Token to NextCloud, test this add-on to NextCloud https://apps.nextcloud.com/apps/groupfolders

If it works... create a config for NextCloud to deploy it automatically (instead of manual)

[janhalen]

@nicolas-semaphor: Closing as done, please reopen and add tasklist or open new issues if the mapping work isnt complete!