OANS/BTV For Fenix A320/21/19

This addon implements the Onboard Airport Navigation System and Brake to Vacate functionality for the Fenix A320, A321, and A319 in Microsoft Flight Simulator. It enables advanced taxi and landing features, allowing for navigation displays and runway exit planning. The addon uses freely available navigation data sources without a Navigraph key requirement. Installation is managed through a setup script included in the package.