New features

Linux (experimental): add a direct ALSA implementation for some special hardware

Bugfixes

Many CI fixes
Fix issues when scanning VSTs
Fix a note off bug with the Arpeggiator processor
Fix that ArtNet universes weren't handled
Fix a rare crash with Pd process
Fix that intervals after a graph node looping back to the beginning of a trigger would get stuck
Fix various issues when editing a faust DSP in a way that changes ports
Improve VST2 compatibility
Fix an error when a vst could not be instantiated
Editing devices: prevent changing the protocol used
Handle nodes that did not create their renderer (#1313)
Fix an invalid factor in triangle waves in LFO (they had too much amplitude)
Fix a lot of warnings
Improvements to context menus
Imrpovements to add-ons being JIT-compiled
Compatibility with FFMPEG 4.4 and LLVM 13