Potential fix for Issue #17

Added atmospheric substation much like the other emergency tank systems
about the station.

Removed the Space Station 13 logo for two reasons: 1) it refers to the
game name ICly, rather than the station name, and 2) it is 8 floor tiles by 2 floor
tiles, which cannot be symmetrically placed in front of a 3 tile wide
hallway.

Logo should, if put back in, say Hypatia Station instead, and be reduced to an odd number of tiles. This would be work for spriters, if it is deemed necessary.