Generic helicopter for group multiplayer flights V1.0 / Heli Model matching

This add-on replaces generic aircraft in Microsoft Flight Simulator multiplayer with a default Bell 407 helicopter, enhancing visual consistency during group helicopter flights. It ensures that other helicopters appear as Bell 407s rather than airplanes, although it may not fully replace all aircraft types. Users can customize the model by modifying the included configuration files, allowing for various helicopter displays while aware that airliners and fighters will also be displayed as Bell 407s if the mod is active.