We tie MP and AI carrier together if /sim/mp-carriers/latch-always is true.
This is done by setting /ai/models/carrier[]/ai-latch to the
/ai/models/multiplayer path containing the corresponding Multiplayer
information. C++ code will detect this and copy across the position and
orientation each frame.
Generally this change proves that we probably don't need the MPCarrier model on the target system - because by using the fallback model to load the Nasal this will happen without needing the high detail models at all.
To support this :
- Added fallback models for all carriers (defined as AI scenarios)
- Added logic to fallback models so that MP carriers load correctly
- The model will still be the AI model.
- MPCarriers.nas from MPCarrier/systems now in Aircraft/Generic
