Megaphones, robot health analyzer, eye dropper delay, rigged cells explode in more scenarios

Added Megaphones to all Heads offices. Added Megaphone.
Robot Analyzer. Health analyzer for robots. Added to robotics.

Adds delay to eye dropper.
Adds more flashlights to the brig.
Change hailer to hearable message.
Officers can be forced set as rev.
Cell.use checks instead of just minuses. Yay for code! This means stungloves blow up now.