Add AirAssault and Airlift mission types with CTLD support

- Add the new airassault mission type and special flightplans for it
- Add the mission type to airbase and FOB
- Add Layout for the UH-1H
- Add mission type to capable squadrons
- Allow the auto planner to task air assault missions when preconditions are met
- Improve Airlift mission type and improve the flightplan (Stopover and Helo landing)
- Allow Slingload and spawnable crates for airlift
- Rework airsupport to a general missiondata class
- Added Carrier Information to mission data
- Allow to define CTLD specific capabilities in the unit yaml
- Allow inflight preload and fixed wing support for air assault

game/commander/objectivefinder.py

@@ -139,6 +139,14 @@ class ObjectiveFinder:
         """Iterates over all active front lines in the theater."""
         yield from self.game.theater.conflicts()
 
+    def air_assault_targets(self) -> Iterator[ControlPoint]:
+        """Iterates over all capturable controlpoints for all active front lines"""
+        if not self.game.settings.plugin_option("ctld"):
+            # Air Assault should only be tasked with CTLD enabled
+            return
+        for front_line in self.front_lines():
+            yield front_line.control_point_hostile_to(self.is_player)
+
     def vulnerable_control_points(self) -> Iterator[ControlPoint]:
         """Iterates over friendly CPs that are vulnerable to enemy CPs.