Hospital beds now have Stuff

Problem is, you can't see it since beds are opaque, but it can be there.
Including some nice stuff too!
Mors hospital stuff

Small chance for bionics_common in the Lab and in two surgeries (talking
chance = 5 in the surgeries, not very common) and makes beds no longer
CONTAINERs so we can see stuff on them.
Restores bed's CONTAINER status
Moves bed-stuff next to the bed

This way it's visible.
Merge hospital room items.

Conflicts:
	data/json/item_groups.json