Alps terrain tune-ups

This add-on adjusts terrain in the Alps region by modifying trees around landmarks like the Landwasser Viaduct, Christ the King statue, Salginatobel Bridge, and Mauvoisin Dam. Watermasks have been tweaked, and excess autogen buildings have been removed from snowy glacier areas. The modifications are intended to work with default vegetation but are also compatible with third-party environment mods. Installation requires placement in the Community folder.