v6.64+dev0728 - July 28 2022
* Includes feature branch: track media/razor edit grouping
* Includes feature branch: pan law/function improvements
* 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
+ Media item fixed lanes: add lane header button context menu option to set recording lane
+ Media item fixed lanes: add lane header button mouse modifier to set recording lane
# Media item fixed lanes: after new recording, set track to play only newly created lane
# Media item fixed lanes: respect option to add new items in fixed lanes when recording overlapping items in a not-yet-fixed-lane track
