Implement APIs for associating, disassociating container_registries with groups

[jopemachine]

Motivation  

• After PR feat(BA-147): Implement m2m table for container_registries, and groups #3065, an API is needed to add and remove relationships between the container registry and groups.

  Required Features

• An API for adding and removing relationships between the container registry and groups.

  Impact  

• Groups should only be able to access the registry if the corresponding association record exists (Except for the global registries.)

  Testing Scenarios  

• Tests need to be added to verify that the API functions correctly.