Ported Allies 01 to the New Lua API

Changes include:
* Added an objectives panel with proper instructions that get updated during the mission.
* ~~The ore management hack in TickIdle has been removed (as in the desert-shellmap).~~
* The soviet base alert got now got a real alarm sound to make enemy behavior easier to understand.
I think you're talking past each other. The check needs to be around the`Trigger.OnRemovedFromWorld` invocation in `SendExtractionHelicopter`, not inside the trigger itself.