Add user favorite

Hi,

I think it would be a nice feature to allow users managing favorites workspaces. Users could use them for the workspaces they use very often.

To accessing its favorites, the user could use his dashboard or his personal workspace. (or an other view)
When a user selects a favorite, it's just like if he had clicked on the workspace in the treeview.
It would be very great if the favorites don't break, even if the workspace is moved.