This tail refactor turned into an organ refactor. Funny how that works. (#67017)

* Fuck you (refactors ur tails)

* Errors

* Wow. Pain.

* Fixes up probably everything

* finish up here

* Fixes hard del maybe

* original owner hard del

* garbage collection runtime

* suck my peen byond

* Mapped tails

* motherfucker.

* motherrfucker. again.

* Whooopppppsie

* yeah bad idea

* Turns out external organs literally just sat in nullspace forever if their parent was deleted, and didnt Remove() themselves, causing harddels.

* So anyways I repathed all organs

* Fixes

* really.

* unit test... test

* unit test-test but it passes linters this time because im a moh-ron

* I've lost track of what im doing at this point

* Hopefully fixes hard del?

* meh

* Update code/datums/dna.dm

* things n stuff

* repath from master pull

code/modules/admin/create_mob.dm

@@ -30,6 +30,7 @@
 	// Mutant randomizing, doesn't affect the mob appearance unless it's the specific mutant.
 	human.dna.features["mcolor"] = "#[random_color()]"
 	human.dna.features["ethcolor"] = GLOB.color_list_ethereal[pick(GLOB.color_list_ethereal)]
+	human.dna.features["tail_cat"] = pick(GLOB.tails_list_human)
 	human.dna.features["tail_lizard"] = pick(GLOB.tails_list_lizard)
 	human.dna.features["snout"] = pick(GLOB.snouts_list)
 	human.dna.features["horns"] = pick(GLOB.horns_list)