Add a retry to selenium tests as to biggest source of failed test is
browsers which doesn't want to start

Replace the API adapter by scorm-again and let him validate the cmis.
remove the reload libraries and cherry pick the needed classes.

After changes to Microsoft API, the following settings cannot be set:
access level, entry / exit annoncement, lobby by pass. "On behalf" user
is not usefull anymore. Application ID neither.

And remove Paypal script loading, update Paypal SDK

Keycloak as OAuth/OpenID provider. UI to setup it quickly, more
attributes mapping in olat.local.properties possible