File restructuring!

This brings down a bunch of defines from /code/defines/obj.dm unto their appropriate files.

I've moved morgue.dm from game/machinery into game/objects/structures since that file contains no machines.

I've reorganized the objects/items/stacks folder and made a 'sheets' and 'tiles' folder to keep things separate

I've separated stool_chair_bed.dm into its own folder which now contains the files: stools.dm, chairs.dm, bed.dm and alien_nests.dm to make it a little easier to go through.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4582 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/structures/bedsheet_bin.dm

@@ -1,5 +1,13 @@
 // BEDSHEET BIN
 
+/obj/structure/bedsheetbin
+	name = "linen bin"
+	desc = "A bin for containing bedsheets. It looks rather cosy."
+	icon = 'icons/obj/items.dmi'
+	icon_state = "bedbin"
+	var/amount = 23.0
+	anchored = 1.0
+
 /obj/structure/bedsheetbin/attackby(obj/item/weapon/W as obj, mob/user as mob)
 	if (istype(W, /obj/item/weapon/bedsheet))
 		del(W)