Enhancement: resource tags

We've added the ability to tag resources via the graph api.
Tags can be added (put request) and removed (delete request) from a resource,
a list of available tags can also be requested by sending a get request to the graph endpoint.

https://github.com/owncloud/ocis/pull/5227
https://github.com/owncloud/ocis/pull/5271
https://github.com/owncloud/ocis/issues/5184
