Remove the temperate RA shellmap and port the desert shellmap to Lua.

mods/common/lua/production.lua

@@ -8,6 +8,14 @@ Production.BuildWithPerFactoryQueue = function(factory, unit, amount)
 	Internal.BuildWithPerFactoryQueue(factory, unit, amount or 1)
 end
 
+Production.SharedQueueIsBusy = function(player, category)
+	return Internal.SharedQueueIsBusy(player, category)
+end
+
+Production.PerFactoryQueueIsBusy = function(factory)
+	return Internal.PerFactoryQueueIsBusy(factory)
+end
+
 Production.SetRallyPoint = function(factory, location)
 	Actor.Trait(factory, "RallyPoint").rallyPoint = location.Location
 end