Refactors tool colors + new sprites (#8786)

* Refactors tool sprites

* yeah

* sort the court

* changelog and worn_overlays

* fuck

* door

* waterloo

* waterloo

* skeeet

* fuck this shit

* stupid color prios

* there

code/modules/mob/living/carbon/human/update_icons.dm

@@ -218,6 +218,12 @@ There are several things that need to be remembered:
 	if(update_icons)
 		update_icons()
 
+//Overlays for the worn overlay so you can overlay while you overlay
+//eg: ammo counters, primed grenade flashing, etc.
+//"item_icons" is used automatically for inhands etc. to make sure it gets the correct inhand file
+/obj/item/proc/worn_overlays(item_icons)
+	. = list()
+
 //BASE MOB SPRITE
 /mob/living/carbon/human/proc/update_body(var/update_icons=1)
 	if (QDELING(src))

code/modules/mob/living/silicon/robot/robot_items.dm

@@ -380,7 +380,7 @@
 /obj/item/screwdriver/robotic
 	icon = 'icons/obj/robot_items.dmi'
 	icon_state = "screwdriver"
-	random_icon = FALSE
+	random_color = FALSE
 
 /obj/item/device/multitool/robotic
 	icon = 'icons/obj/robot_items.dmi'
@@ -389,4 +389,4 @@
 	icon = 'icons/obj/robot_items.dmi'
 
 /obj/item/weldingtool/robotic
-	icon = 'icons/obj/robot_items.dmi'
+	icon = 'icons/obj/robot_items.dmi'