Monkey cube now expand when eaten, leading to !!FUN!!
Lowers caused damage to make it destroy organs rarer.
Moved same code into single organ helper to handle embedding.
Made monkey cube subtypes define what type of monkey they spawn instead of weird switch in Expand().
Rewrote belly expanding accordingly. Also now you get a living monkey from the monkey.
Merge branch 'dev' of https://github.com/Baystation12/Baystation12 into monkey_revenge

Conflicts:
	code/modules/organs/organ_external.dm
Merge pull request #5345 from comma/monkey_revenge

Monkey cube now expand when eaten, leading to !!FUN!!