[PR] Makes ghostcritters able to be picked up

[nefarious6th]

I just wanna follow up and say I'm sorry to Super for bringing up the old PR without understanding the discussion and the ways this new one was meant to move different ideas forward. I like the idea of toteable critters; I know there's some comments on the implementation of it, but I think having critter friends join on space adventures could be cool. This might also help with either hiding critters to help them if people are trying to kill them for no reason, or being able to grab critters while removing stuff from them (cockroach with the stolen Spare ID) without having to kill them to get the things back.