Move GitLab resource specific operations to GitLab resource wrapper

Summary

As a follow up for #429 (closed), pull more of GitLab resource specific operations into the GitLabWrapper interface. For example IsXyzEnabled helpers can be consolidated and defined as a function for this interface.

Acceptance criteria

• Identify the operations that can be pulled into GitLabWrapper
• Refactor the operations and replace the helper functions
• Change all the references to these operations and use the replacement