* Adding the default role concept in the backend
* Adding the interface part
* Fix golang-ci lint errors
* Adding local permissions tests
* Address PR review comments
* Improving the code a bit
* Another small fix
* Renaming DefaultRole to MinimumRole
* Setting the minimum role at minimum to check the permissions per roles in the integration tests
* Adding the new minimum role behavior
* Fixing some tests
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>