Allows cargo objects to be added via classname and reduces simulation/synchronization overhead. Objects become physical upon unloading and cannot be re-made virtual, only scripts can add such virtual objects.
Also separates the player feedback from the loading/unloading code and adds a progress bar.
Fix that findNearestVehicle dont return any time the nearest car
Small Performance Improvement in getSizeItem/handleDestroyed/startUnload
Enhance Some legibility
