[Needs bugtesting] Farewell to Mutantrace

Mutantrace is no more, and in its place are subtyped mutants. This allows for a lot of clean up in things like life and paves the way for more functionality for mutant races without the intense snowflake that has plagued mutantrace.

Obviously this will make a wide variety of code have to deal with mobs in a way the creators may not have planned for, so I'm expecting heavy amounts of bugs that may not become readily apparent without lots of testing.

This is almost completely a refactor but a few small changes, mostly to make my life easier:
*People cloned in pods are now always plantpeople
*People who get flypersoned in the teleporter no longer gain huge rad damage on top of it.