[Map] Boxstation updates

Phew, this one hits a few things:

Removes the now-unnecessary input/output landmarks for mining equipment.
Replaces the instances of turf/simulated/mineral (which do not create ores) on the asteroid with turf/simulated/mineral/random.
Replaces the bloated toxins test area, with the one trialled on Metastation.
HoP office and Away Mission area equipped with shutters, inspired by Metastation.
Couple other minor tweaks.

http://puu.sh/6bfsF.png
http://puu.sh/6bfvt.png
http://puu.sh/6bfx9.png