Remaps the nuke ops shuttle for station docking

Adjusts the shuttle to incorporate a nice, 2-tile wide docking hatch.
Drops the viro/xenobio docking arm.
Adds a button so that the teleporter blast door can be operated
independently of the airlock blast door.
Fixes some leftover arrivals area just hanging around in space.
Adds a poster specifically for the nuke ops shuttle.