Martian mode two point oh

[mbc]

Hey, jus so you know i'm still around. I don't really have time to code for martian mode because of classes, but I have a good deal of their items and machinery completed. To code the martian mobs, we'll probably need an *actual* ss13 coder, because mobs have changed so much since rev 4407 that making the martians myself wouldn't be worthwhile.