Expands large-inhands to large-any-worn-item, Adds a system for overlays on top of inhands and other clothing (Think ammo counters, primed grenade flashing etc.), Removes almost all of the copypaste in the update_icons() system

code/game/objects/items.dm

@@ -7,8 +7,12 @@ var/global/image/fire_overlay = image("icon" = 'icons/effects/fire.dmi', "icon_s
 	var/lefthand_file = 'icons/mob/inhands/items_lefthand.dmi'
 	var/righthand_file = 'icons/mob/inhands/items_righthand.dmi'
 
-	//Dimensions of the lefthand_file and righthand_file vars
+	//Dimensions of the icon file used when this item is worn, eg: hats.dmi
 	//eg: 32x32 sprite, 64x64 sprite, etc.
+	//allows inhands/worn sprites to be of any size, but still centered on a mob properly
+	var/worn_x_dimension = 32
+	var/worn_y_dimension = 32
+	//Same as above but for inhands, uses the lefthand_ and righthand_ file vars
 	var/inhand_x_dimension = 32
 	var/inhand_y_dimension = 32
 
@@ -37,7 +41,9 @@ var/global/image/fire_overlay = image("icon" = 'icons/effects/fire.dmi', "icon_s
 
 	//Since any item can now be a piece of clothing, this has to be put here so all items share it.
 	var/flags_inv //This flag is used to determine when items in someone's inventory cover others. IE helmets making it so you can't see glasses, etc.
-	var/item_color = null
+
+	var/item_color = null //this needs deprecating, soonish
+
 	var/body_parts_covered = 0 //see setup.dm for appropriate bit flags
 	//var/heat_transfer_coefficient = 1 //0 prevents all transfers, 1 is invisible
 	var/gas_transfer_coefficient = 1 // for leaking gas from turf to mask and vice-versa (for masks right now, but at some point, i'd like to include space helmets)