Fix cargo loading/unloading.

- Fix the unloading subcell bug, letting us have units move to directly adjacent cells.
- Have the cursor change to a deploy-blocked cursor if the transport can't unload due to terrain type.
- Add RenderTransport for transport door opening.
- Remove turning/opening in general.

mods/common/lua/actor.lua

@@ -80,7 +80,7 @@ Actor.Hunt = function(actor)
 end
 
 Actor.UnloadCargo = function(actor, unloadAll)
-	actor:QueueActivity(OpenRA.New("UnloadCargo", { unloadAll }))
+	actor:QueueActivity(OpenRA.New("UnloadCargo", { actor, unloadAll }))
 end
 
 Actor.Harvest = function(actor)

mods/ra/sequences/aircraft.yaml

@@ -66,8 +66,7 @@ tran:
 		Start: 32
 		Length: 4
 	unload: tran2
-		Start: 32
-		Length: 4
+		Start: 35
 	icon: tranicon
 		Start: 0
 		

mods/ra/sequences/ships.yaml

@@ -47,6 +47,7 @@ lst:
 	open:
 		Start: 1
 		Length: 4
+		Tick: 150
 	unload:
 		Start: 4
 	icon: lsticon

mods/ra/sequences/vehicles.yaml

@@ -177,7 +177,7 @@ apc:
 		Start: 0
 		Length: 6
 		Facings: 8
-	close:
+	open:
 		Start: 32
 		Length: 3
 	unload: