Adds pulling rabbits from top-hats (#56773)

This PR makes it so using a wand on a top-hat makes a rabbit appear in
your hand! Fun! There's a 10% chance that instead of a cute bun you get
angry bees though, but a true performer will soldier on anyway. You can
now also scoop up rabbits in your hands, and scooping animals only
requires one free hand to do so instead of all your hands being free.

code/modules/holiday/easter.dm

@@ -51,6 +51,7 @@
 	layMessage = list("hides an egg.","scampers around suspiciously.","begins making a huge racket.","begins shuffling.")
 	pet_bonus = TRUE
 	pet_bonus_emote = "hops around happily!"
+	can_be_held = TRUE
 
 /mob/living/simple_animal/chicken/rabbit/space
 	icon_prefix = "s_rabbit"