Atmos control for the Port-a-Brig

[Noah Buttes]

OK, after experiencing NO2 + Handcuffs + Portabrigging for myself, I retract this idea as stupid and the anti-fun.

Also remove NO2 it is the worst feature in the game and has always been the worst feature in the game.

N2O is great for quelling monkey riots in genetics without killing all the monkeys. It also has some rather useful thermal properties and can function as a substitute gas in the engine loops if you can't use plasma for some reason.

Nitrous oxide is actually better than plasma in the cold loop.

I didn't do the exact calculations, but it makes sense that it would be.