Camera relocations, area instance, misc.

Creates a proper area instance for the new engineering shuttle room, toavoid issues with multiple APCs among other things.

Replaces the vent in the fitness room with one which does not show it's connection pipe.
Properly aligns conveyor belt levers on the Research outpost with each other.

Re-locates cameras to improve coverage (no additions), with the sole purpose of ensuring that the AI can assist in opening main doors (fun times) by being able to see the door itself and both sides of it.
Affects:
Virology Entrance - Can now see people south of door connecting Viro/Medbay.
Permanent Brig - Can now see the north set of doors by default (would randomly gain coverage, potentially caused by doors closing/opening)
East Central Primary Hallway - Coverage would previously be lost if chemists closed their window shutters.
South Central Primary Hallway - Can now see the south set of doors to the engineering lobby, default coverage of the HoP's and nearby all-access doors (again, coverage would eventually be granted by unknown process)
West Mining Wing - Can now assist in opening both sides of the bridge connecting the wings