Maintaining the positioning of the files from v2 to reduce cognitive
load.
Indentation of yaml files now matches `.editorconfig`.
All mock files regenerated.
Added empty `{}` following convention from `mockery init` etc.
Removed directory specification where it would already match.
This introduces the new DriveItemPermissionsService and DriveItemPermissionsApi to
allow for better separation of the business logic and the API handling.
As a starting point the Invite method was moved to the new service. More to follow.
06kellyjac