Readds non-persistent contraband filled smugglers satchels (#42228)

* Readds non-persistent contraband filled smugglers satchels

* Ten random satchels are placed each round

code/game/objects/items/storage/backpack.dm

@@ -290,6 +290,46 @@
 	icon_state = "satchel-cap"
 	item_state = "captainpack"
 
+/obj/item/storage/backpack/satchel/flat
+	name = "smuggler's satchel"
+	desc = "A very slim satchel that can easily fit into tight spaces."
+	icon_state = "satchel-flat"
+	w_class = WEIGHT_CLASS_NORMAL //Can fit in backpacks itself.
+	level = 1
+
+/obj/item/storage/backpack/satchel/flat/ComponentInitialize()
+	. = ..()
+	GET_COMPONENT(STR, /datum/component/storage)
+	STR.max_combined_w_class = 15
+	STR.cant_hold = typecacheof(list(/obj/item/storage/backpack/satchel/flat)) //muh recursive backpacks
+
+/obj/item/storage/backpack/satchel/flat/hide(intact)
+	if(intact)
+		invisibility = INVISIBILITY_OBSERVER
+		anchored = TRUE //otherwise you can start pulling, cover it, and drag around an invisible backpack.
+		icon_state = "[initial(icon_state)]2"
+	else
+		invisibility = initial(invisibility)
+		anchored = FALSE
+		icon_state = initial(icon_state)
+
+/obj/item/storage/backpack/satchel/flat/PopulateContents()
+	var/datum/supply_pack/costumes_toys/randomised/contraband/C = new
+	for(var/i in 1 to 2)
+		var/ctype = pick(C.contains)
+		new ctype(src)
+
+	qdel(C)
+
+/obj/item/storage/backpack/satchel/flat/with_tools/PopulateContents()
+	new /obj/item/stack/tile/plasteel(src)
+	new /obj/item/crowbar(src)
+
+	..()
+
+/obj/item/storage/backpack/satchel/flat/empty/PopulateContents()
+	return
+
 /obj/item/storage/backpack/duffelbag
 	name = "duffel bag"
 	desc = "A large duffel bag for holding extra things."