Hellhound improvments

[tuzz]

Summary: Hellhounds are missing some basic functionalities right now, like hotkeys and the ability to break objects.

Benefits: Make hellhound less of a hassle to play when they happen to be spawned in.

Details: Hellhounds seem to be missing many basic hotkeys, like ctrl+click to pull, shift+click to examine, choosing intent with 1-4, to name a few.
If you are pulling someone there is no button on the hud to stop pulling, and have to go to the IC tab and use the stop-pulling verb, or type it in.
They also aren't able to break any objects from what I could tell, nor unbuckle people. So things like tables, glass, and grilles are impassible.

Implementation: Perhaps update current hellhounds or replace them with new ones if that would be easier.

[ty55101]

The shift+click to examine seems to be intentionally removed because it growls at a person instead.