Initial Commit

All bones are now a collection of variables and flags inside the limb
object. Bone breaking is a seperate flag from organic/cybernetic because
otherwise, when dismemberment is in, a lot of checks would have to be
rewritten, amongst other things..
Fixed a bug where the slowdown from bones was calculated twice.
Tweaked the bomb explosion chances a bit, mostly because all the other
lower explosions had a bigger breakchance then the one that could gib
you.
Made bone agony a bit fairer: instead of all your bones hurting you
while moving, it picks from one currently broken bone. Still dangerous.

Not finished yet, requires testing, bone surgery, editing cryo's Nano
template to show broken bones, etc.