More Metaclub changes

warning stripes to xenobiology
readded maintenance door to the area east of the bar which was removed when mechanics was added
new maintenance passage SW of the brig, sec entrance having only one exit was pretty damaging for gameplay in my opinion
given central storage near the bridge its own APC and area for Malf rounds like Box
fixed up mechanics a bit
layout changes in the casino room and included stage in its APC area
pods given reinforced windows
primary tool storage made more consistent with box
slightly reduced the number of maintenance doors in medbay
autopsy added to the morgue
two dorms rooms replaced with a shop, there's no need for 6 anyway
dozens of smaller changes, especially regarding maintenance