Add client scope mapper crud

[AaronCDee]

This merge request adds CRUD support for client-scope protocol mappers.

It adds a new client_authz_scope_protocol_mapper_client to add the mappers via the API.

Please let me know what you think and if there's any improvements you would like me to make. :)

[AaronCDee]

If this is approved, would you like me to add documentation as well on how to use this?

[looorent]

This is a nice PR, @AaronCDee , thank you!
There is mostly a naming issue between the classes/accessors and the actual concept used in Keycloak.
Yes, you can also add a little bit of documentation in the README.md about this new feature.

[AaronCDee]

@looorent thanks so much for the quick response. I've adjusted the PR as per the feedback and added documentation. Please take a look and let me know what you think.

[AaronCDee]

@looorent , I'm going to add the client scopes to this one as well.

[AaronCDee]

@looorent , I'm going to add the client scopes to this one as well.

I will need that as well as part of my integration. I mistakenly thought authz_client_scopes were what I needed... 😅 Standby for more updates :)

[looorent]

@AaronCDee Bad timing on my part! I just merged this while your comment was coming through. :/

Could you follow up with a new PR for those extra features?