Map fixes - Tactical, central primary, medbay

Tactical storage should now be less trivial to break into thanks to air alarms and cameras.
Fixes an issue with EVA (storage/engineering) motion alarms being mixed up.
Removes and adds pipes around new medbay.
Central hallway should now be a less awful place during spacing/overpressure with new vent/scrubber positions.
Fixes #4671, #4667, and #4672.

See individual commits for details.. sorry for horrible "base" commits.