Landmark Shuttles (#8512)

The lifeless live again. Or in this case, what never actually lived here.

Ports Baystation12/Baystation12#17460 probably for real this time. What this allows us to do is create shuttles on runtime and make shuttles easier by just making landmarks and a shuttle instead of areas and shuttles. Also allows runtime landmark creation via flares or whatever AND allows shuttles to use different landmarks at will.

I removed most of the overmap stuff, I think. It shouldn't be hard to slam it in whenever we need to.

Changes:

    "Shuttle code has been completely reworked."
    "Shuttles can now be modified to have more than one destination."
    "Shuttles now have a takeoff sound."
    "You can now throw mobs against walls to damage them. A lot."
    "You now need a neckgrab to throw mobs."
    "BEING UNBUCKLED DURING SHUTTLE LAUNCH IS DANGEROUS! Don't do it."
    "Adminghosts can now interact with all shuttles."

code/modules/mining/machine_vending.dm

@@ -158,27 +158,24 @@ var/global/list/minevendor_list = list( //keep in order of price
 			if(prize.cost > inserted_id.mining_points)
 			else
 				if(prize.shuttle)
-					var/datum/shuttle/ferry/supply/shuttle = SScargo.shuttle
+					var/datum/shuttle/autodock/ferry/supply/shuttle = SScargo.shuttle
 					if(shuttle)
-						var/area/area_shuttle = shuttle.get_location_area()
-						if(!area_shuttle)
+						if(!shuttle.shuttle_area) //This really should never happen, but, oh well.
 							to_chat(usr, SPAN_DANGER("{ERR Code: NO_SHUTTLE} Order failed! Please try again."))
 							return
-
-
 						var/list/clear_turfs = list()
-
-						for(var/turf/T in area_shuttle)
-							if(T.density)
-								continue
-							var/contcount
-							for(var/atom/A in T.contents)
-								if(!A.simulated)
+						for(var/area/subarea in shuttle.shuttle_area)
+							for(var/turf/T in subarea)
+								if(T.density)
 									continue
-								contcount++
-							if(contcount)
-								continue
-							clear_turfs += T
+								var/contcount
+								for(var/atom/A in T.contents)
+									if(!A.simulated)
+										continue
+									contcount++
+								if(contcount)
+									continue
+								clear_turfs += T
 
 						if(!length(clear_turfs))
 							to_chat(usr, SPAN_DANGER("{ERR Code: NO_SHUTTLE_SPACE} Order failed! Please try again."))