Map updates

Adds air alarm, vent, and scrubber in the chamber between Toxin Mixing and Launch Room.
Adds air alarms in various maintenance sections, divides the starboard engineering section into two using a simple door.
Security gets lights in nearby maintenance.

Research can now conduct a full lockdown. Mainly affects Xenofauna.
Relocates the lockdown button so it's no longer hidden beneath a computer.

Emergency shutters now interact consistently with doors across the station and research outpost.

More area changes to prevent alarms from lowering shutters in adjacent but otherwise unconnected areas.
Many changes were lost in a commit, port/fore primary hallways, but medbay is a new set.

Further reshuffling of cameras in the primary hallways as coverage would otherwise be lost during major emergency shutter drops.
Sadly required adding two additional cameras.

Relocates the lights at the arrivals slightly to make them less grouped up.
Fixes  #5642.

Each commit is fairly big and made to be self-contained but if desired I shall squash them.