feat: input midi velocity into a separate track #361

Job	Run time
Create release	8s
binaries (windows-latest, C:\Users\runneradmin\nasm\nasm, sointu-track.exe, cmd/sointu-track/main...	1m 4s
binaries (windows-latest, C:\Users\runneradmin\nasm\nasm, sointu-compile.exe, cmd/sointu-compile/...	1m 5s
binaries (windows-latest, C:\Users\runneradmin\nasm\nasm, sointu-track-native.exe, -tags=native c...	1m 3s
binaries (windows-latest, C:\Users\runneradmin\nasm\nasm, sointu-vsti.dll, -buildmode=c-shared -t...	1m 5s
binaries (windows-latest, C:\Users\runneradmin\nasm\nasm, sointu-vsti-native.dll, -buildmode=c-sh...	1m 2s
binaries (ubuntu-latest, /home/runner/nasm/nasm, sointu-track, cmd/sointu-track/main.go, libegl-d...	1m 3s
binaries (ubuntu-latest, /home/runner/nasm/nasm, sointu-compile, cmd/sointu-compile/main.go, libe...	44s
binaries (ubuntu-latest, /home/runner/nasm/nasm, sointu-track-native, -tags=native cmd/sointu-tra...	58s
binaries (ubuntu-latest, /home/runner/nasm/nasm, sointu-vsti.so, -buildmode=c-shared -tags=plugin...	1m 3s
binaries (ubuntu-latest, /home/runner/nasm/nasm, sointu-vsti-native.so, -buildmode=c-shared -tags...	18s
binaries (macos-latest, /Users/runner/nasm/nasm, sointu-track, cmd/sointu-track/main.go)	59s
binaries (macos-latest, /Users/runner/nasm/nasm, sointu-compile, cmd/sointu-compile/main.go)	25s
binaries (macos-12, /Users/runner/nasm/nasm, sointu-track-native, -tags=native cmd/sointu-track/m...	1m 21s
upload_release_asset	0s
	12m 18s

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