REAPER v6.67+dev0917

v6.67+dev0917 - September 17 2022

* Includes feature branch: media item fade editing changes
* Includes feature branch: selected media item appearance changes
* Includes feature branch: track grouping manager dialog
* Includes feature branch: CLAP plugin support
* Includes feature branch: track media/razor edit grouping
* Includes feature branch: improve experimental silent-track CPU reduction option to include FX tail length
* Includes feature branch: media item fixed lanes
* Includes feature branch: internal pin management overhaul for future extension
+ Paw: fix stereo pan calculation at narrow pans with certain pan laws [t=270792]
+ ReaSurroundPan: do not include channel number when automatically naming channels from receives [p=2596582]
+ Video: fix gfx_fillrect() alpha channel writing corner case [t=270611]
# CLAP: fix plug-ins incorrectly being categorized as instruments
# CLAP: list only defined CLAP plug-in sub-categories in Add FX window