Posters refactor (#24548)

* Posters refactor

- Posters now use a simple type-per-poster definition, rather than some
large global lists requiring sprite numbers to be the same as entries in
a list.
- Putting a specific poster on a map now simply means putting the
specific type that you want, rather than var editing (often
unsuccessfully).
- There are random all-posters, random contraband posters, and random
official posters for mappers too.
- Ripped posters are now their own type.
- The potential to make additional classes of posters has been left
open, I'd like to move a bunch of the advertisement posters to their own
catagory, and clean up the "official" category to be more obviously
on-brand.

* Updates DeltaStation

* Changed the maps of Metastation

* OmegaStation posters updated

* Updated Pubby posters

* Map merged?

* Updated away mission and ruin posters

* Removes vars from garbage

code/modules/library/lib_machines.dm

@@ -482,7 +482,7 @@ var/global/list/datum/cachedbook/cachedbooks // List of our cached book datums
 			say("Printer currently unavailable, please wait a moment.")
 	if(href_list["printposter"])
 		if(cooldown < world.time)
-			new /obj/item/weapon/poster/legit(src.loc)
+			new /obj/item/weapon/poster/random_official(src.loc)
 			cooldown = world.time + PRINTER_COOLDOWN
 		else
 			say("Printer currently unavailable, please wait a moment.")