Metastation: Compatibility modifications

This commit modifies metastation to actually be playable on our code
Squashed Commits:
 - [META] Fixes emergency shuttle being stuck
 - Toxins Mixing fix: chamber floor > engine
 - Adds research outpost + Chem lab to routpost
 - Add vox raider ship, fix pods and a few shuttle zones.
 - Remove step_x so TRAVIS likes it
 - Finish spawn points, add telepad.

 - Replace showroom with NT-rep/Blueshield Office
   Don't worry, the nuke keg is in the meeting room.
 - Convert art storage to barber shop, place artvend in tool storage
 - Buncha medbay tweaks, 2nd surgery table, body scanners, fixed sleepers,
   minor balance changes.
 - Add Mr. Changs to dorms
 - Update meta to latest paracode
 - Fix punpun
 - Atmos volume pumps, atmos control console
 - Add chicken statue to Mr. Chang's (*cry), Bar smartfridge
 - Fix mr. changs statue and chairs
 - Add togglable polarized windows to surgery, so surgeons can prevent seeing
   other surgery procedures if necessary
 - Actually add atmos control comp
 - Hydro trays are no longer dirt
 - Fix brig windoors
 - Fix escape shuttle sleepers

code/game/objects/structures/window.dm

@@ -105,6 +105,8 @@ var/global/wcColored
 /obj/structure/window/CanPass(atom/movable/mover, turf/target, height=0, air_group=0)
 	if(istype(mover) && mover.checkpass(PASSGLASS))
 		return 1
+	if(dir == SOUTHWEST || dir == SOUTHEAST || dir == NORTHWEST || dir == NORTHEAST)
+		return 0	//full tile window, you can't move into it!
 	if(get_dir(loc, target) == dir)
 		return !density
 	else