Allow Users to register as non-owners on a Vector Instance.

[bmcgonag]

Story

Allow non-owners to register on the Vector Instance and create their own interfaces, with the same control as Owner over their own interface(s).

Acceptance Criteria

• Add a new Role called allUsers, and assign anyone to that role who is not the owner of the site.
• User can add, edit, enable / disable and delete his / her own interface
• Owner can enable / disable / delete a normal user's interface(s).
• When disabled by an owner, a normal user can't re-enable his / her interface.
• Non-owners can't make manual modifications to interface IP, but must use the auto-generated IP
• Non-owners don't have access to the server module.
• Non-owners don't have access to Configuration or Settings.