Collins Bay Marina + CFSS CYGK fixes

This add-on enhances the Collins Bay Marina in Kingston, Ontario, incorporating 3D models over 2D satellite images and requires the Mamudesign Marinas scenery package. Additionally, it addresses several issues with CFSS CYGK airport, including removing Z-fighting around the terminal and adjusting vegetation placement. The installation is straightforward, requiring the package to be placed in the community folder.