Expand the drive GET-endpoints with user information

[JammingBen]

Currently I can get the userIds for a drive while querying the drive:

"permissions":[
               {
                  "grantedTo":[
                     { "user":{ "id":"ddc2004c-0977-11eb-9d3f-a793888cd0f8" } },
                     { "user":{ "id":"ddc2004c-0977-11eb-9d3f-a793888cd0f9" } }
                  ]
               }
            ],

To get the actual user information, I need to query all those ids separately. It would be nice to make use of the graph API and add a possibility for clients to expand the query to also include user objects.

Alternatively a user-list-query where I can filter via an array of userIds would be handy.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.

[micbar]

Implemented on the user endpoint.