Almost done

I'm almost done with the ledge climb into crawling into a hole thing. Just need to do it in a way Godot is happy with; I learned a few quirks of it while trying to implement this, like this happens if you have this, or this doesn't work in this situation, things like that.

For now I'll make it work by any means necessary, and then I'll have to come back and see how to improve the code.