[MERGED PR] Nucular Fishin' Engine

[Kotlol]

Oh also I changed how radiation works



Here's a rough design doc for it:
Radiation Redesign

Short summary: All radiation sources are now visually identifiable - all the time. Radiation affects things on nearby tiles (ie, it radiates). Things can become temporarily radioactive. Radiation dose builds up in people. Over a certain level it starts making you sick. Radiation immunity is no longer a thing, but you can get nearly immune with good gear.

Wait what? Do mutations count? Does being a roach count? or is it the same radiation that can penetrate even those like those radiation pulses?