REAPER v6.64+dev0718

v6.64+dev0718 - July 18 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
+ Actions: deselect unaffected items when running action to split items [p=2578578]
+ Automation items: fix behavior of action to split items without changing selection
+ Grouping: various razor edit behaviors apply to hidden grouped tracks
+ Project bay: add FX menu item to toggle auto bypass
# Pan: rename sin/cos taper to sine taper (just as descriptive and a little less odd sounding)