Rework killed map_objects recognition

- removed the map_object_id from the TGO
- add a new TriggerRule with the MapObjectIsDead Condition which adds the map object to the killed_map_objects array in the state.json
- Use the trigger_zone_name as the unique identifier used for the unit_map to recognize the kill

game/unitmap.py

@@ -221,7 +221,7 @@ class UnitMap:
         self.buildings[name] = Building(ground_object)
 
     def add_scenery(self, ground_object: SceneryGroundObject) -> None:
-        name = str(ground_object.map_object_id)
+        name = str(ground_object.zone.name)
         if name in self.buildings:
             raise RuntimeError(
                 f"Duplicate TGO unit: {name}. TriggerZone name: "