Persistent trash (#21217)

# Summary

This PR adds trash to the persistence system.

- Trash becomes persistent the moment it is dropped unless it is dropped
in a maint or the disposal room.
- It looses persistence when it lands in a maint/disposal room or gets
picked up again.
- Persistent trash can be found up to three days.

Those are the base rules, some trash types have additional rules.

List of trash to be implemented:

- [x] Basic trash (snacks and such)
  - Cigarette buts
  - spitwad
  - Burned matches
- [x] Broken bottles
- [x] Torn inflatable (-doors)

> Littering is a i120 violation and can be punished with 3-7 minutes of
prison time or with a 40-150 credit fine.
> Stop littering and keep the ship clean.

## Follow-up tasks

- [x] Update GitHub Wiki: Add section on how to add persistent trash
types.
- [x] Update GitHub Wiki: Make persistence_get_content nullable/empty.

code/modules/mapping/reader.dm

@@ -543,6 +543,7 @@ GLOBAL_LIST_INIT(_preloader_path, null)
 /area/template_noop
 	name = "Area Passthrough"
 	icon_state = "noop"
+	area_flags = AREA_FLAG_PREVENT_PERSISTENT_TRASH
 
 /turf/template_noop
 	name = "Turf Passthrough"

code/modules/reagents/reagent_containers/food/drinks/bottle.dm

@@ -247,6 +247,12 @@
 	///The mask image for mimicking a broken-off neck of the bottle
 	var/static/icon/flipped_broken_outline = icon('icons/obj/item/reagent_containers/food/drinks/drink_effects.dmi', "broken-flipped")
 	w_class = WEIGHT_CLASS_SMALL
+	persistency_considered_trash = TRUE
+
+/obj/item/broken_bottle/persistence_apply_content(content, x, y, z)
+	src.x = x
+	src.y = y
+	src.z = z
 
 #define DRINK_FLUFF_GETMORE  "This drink is made by Getmore Corporation, a subsidiary of NanoTrasen. It mostly specializes in fast food and consumer food products, \
 								but also makes average quality alcohol. Many can find Getmore products in grocery stores, vending machines, \