Nano UI Improvements

* Nano UIs now "work" with AI and Cyborgs.
* Visibility updates (now uses line of sight).
* Added displayBar() template helper for displaying progress/health bars.
* Added new health bars to Nano UI Cryo.
* Added Eject Occupant to Nano UI Cryo.
* Nano now handles Topic for the src_object, allowing it to only allow interactions with UIs that have a "STATUS_INTERACTIVE" status/visibility.