[MAP] Extends medbay vertically two tiles, adds bolt buttons to toilet stalls

- Extends cloning lab, cryogenics room, sleeper room and surgery by two tiles to try to ease the amount of shoving during emergencies like blob, nuke ops, virus outbreaks and facehuggers. It's very frustrating trying to doctor with a horde of patients and volunteers packed into the tiny areas all pushing and shoving trying to treat each other or get treated. Hopefully these two extra tiles will reduce the shoving.

Here is a picture:
http://puu.sh/5cOP3.png

- Adds bolt buttons to toilet stalls so players can AFK, spawn traitor items or absorb genomes in there in peace. Also for fluff, as public toilets have locks.

Apparently this can't be automatically merged. I don't know why, I used the map merge tools.