[ready] adds unit test for missing inhand icons. fixes a bunch of missing inhand icons (#70037)

fix: Fixed a bunch of missing inhand icons.
fix: Fixed cables in electrical toolboxes not randomizing their colors.
fix: Fixed the wrong colored icon showing when trying to make cable cuffs out of cables.
fix: The collectable SWAT helmet is now using the proper icon again!
refactor: Pipecleaners and power cables now share a unified color system, so they're once again available in ALL the same colors.
imageadd: Updated the screwdriver belt overlay to represent the newer sprite.
imageadd: Added a bunch of new inhand icons. Special thanks to Twaticus for doing the helmets! <3
fix: Wirecutters now have an icon when inside a belt again!
admin: Added a new omnitool subtype that allows you to spawn all items in a typepath!
fix: Explorer gaskmasks now properly reflect their adjusted state when held.
fix: Fixed balaclavas having the wrong icon when pulled up.
fix: Fixed the base energy sword (admin spawn only) being invisible.
fix: The rainbow energy sword is now a little bit more rainbowy!
fix: Fixed an tk exploit with orange handcuffed shoes.
fix: The traitor outfit in the select equipment panel is now actually functional!

code/game/objects/items/debug_items.dm

@@ -30,6 +30,8 @@
 	icon = 'icons/obj/device.dmi'
 	icon_state = "hypertool"
 	inhand_icon_state = "hypertool"
+	lefthand_file = 'icons/mob/inhands/equipment/tools_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/equipment/tools_righthand.dmi'
 	toolspeed = 0.1
 	tool_behaviour = null
 
@@ -44,6 +46,7 @@
 		return FALSE
 	return TRUE
 
+
 /obj/item/debug/omnitool/attack_self(mob/user)
 	if(!user)
 		return
@@ -119,4 +122,32 @@
 	else
 		RemoveElement(/datum/element/eyestab)
 
+/obj/item/debug/omnitool/item_spawner/attack_self(mob/user)
+	if(!user || !user.client)
+		return
+	var/path = text2path(tgui_input_text(user, "Insert an item typepath to spawn", "ADMINS ONLY. FUCK AROUND AND FIND OUT."))
+	if(!path)
+		return
+	var/choice = tgui_alert(user, "Subtypes only?",, list("Yes", "No"))
+	if(!choice)
+		return
+	if(!user.client.holder)
+		if(!isliving(user))
+			return
+		var/mob/living/living_user = user
+		to_chat(user, span_warning("As you try to use [src], you hear strange tearing sounds, as if the coder gods were attempting to reach out and choke you themselves."))
+		playsound(src, 'sound/effects/dimensional_rend.ogg')
+		sleep(4 SECONDS)
+		var/confirmation = tgui_alert(user, "Are you certain you want to do that?", "Admins Only. Last Chance.", list("Yes", "No"))
+		if(!confirmation || confirmation == ("No"))
+			return
+		if(!user.client.holder) //safety if the admin readmined to save their ass lol.
+			to_chat(user, span_reallybig("You shouldn't have done that..."))
+			playsound(src, 'sound/voice/borg_deathsound.ogg')
+			sleep(3 SECONDS)
+			living_user.gib()
+			return
+	var/turf/loc_turf = get_turf(src)
+	for(var/spawn_atom in (choice == "No" ? typesof(path) : subtypesof(path)))
+		new spawn_atom(loc_turf)