v6.0.2-sa2

This version fixes the channel layouts for 5.1 and 7.1. 5.1 was set to side surrounds but Sunshine creates the virtual speaker device using back surrounds. And with 7.1, I had set it to the base layout used by Atmos (side surrounds, then back) as well as 5.1-side mode, but in fact the Microsoft 7.1 format has them the other way around.