REAPER v6.64+dev0801

v6.64+dev0801 - August 1 2022

* Includes feature branch: CLAP plugin support
* 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
+ CLAP: initial support for CLAP plugins
+ Envelope window: improve appearance with scrollbars and retina displays
+ Sends: optimize processing when send muted and running muted tracks is enabled
+ Sends: optimize processing when sends do not send MIDI and have their volume to -inf
+ Theme: fix 3 small issues [p=2581377]
# Media item fixed lanes: draw recording items over bottom half of recording lane, or bottom half of bottom lane if no recording lane
# Media item fixed lanes: respect preference to split and create takes, or trim behind existing media, when recording into specific fixed lane