This refactors the mob-eat-mob code and fixes a few bugs along the way.
- Bursting out of a stomach now has a 0.4 second delay between attacks,
so the message cannot be spammed.
- The list of mobs that can eat other mobs has been refactored to be a
subproc instead of a 255char~ list on one line.
- Mob grab uses #defines for the time it takes to eat something else,
now.
- Fixed xenomorphs bugging out the grab system, and made sure that fat
people can't actually eat them because of this.
e3b3daba49