[MKStudios] Adelaide Airport YPAD / Official GSX Pro Profile

This add-on provides the official GSX Pro profile for MKStudios Adelaide Airport (YPAD) in Microsoft Flight Simulator. It features custom stop positions, vehicle placements, and detailed pushback and engine start procedures, optimized for use on Vatsim. The profile supports various aircraft types and includes accurate gate assignments reflective of real-world operations, alongside detailed instructions for installation and known issues.