Terrain Elevation and ATC Fix for CFSS CYAZ 2020

This add-on addresses terrain elevation problems at CFSS CYAZ Tofino airport caused by the Canada 2020 terrain update, enhancing airport usability. The runway and taxiway system has been revamped to restore default airport data, enabling compatibility with BeyondATC for IFR operations. Nearby Florencia Bay beach is now properly uncovered in the scenery. Some minor issues may remain, but most major glitches have been resolved.