fix #32086: copy fingering manual adjustments
add new fingering styles
enable debugger for debug builds
fix #37206: Export channels to midi works
fix 37646: bad continued tie with seconds
Fix #37971: Tempo from MIDI file not imported
Fix compilation for C++ lib versions without std::map::emplace()
Fix #37846: MIDI import panel is not displayed when opening a MIDI file
merge upstream
fix #37961
fix #37911
fix #37571
update mtest
Merge pull request #1423 from trig-ger/fix_show_midi_panel

Fix #37846: MIDI import panel is not displayed when opening a MIDI file
Merge pull request #1422 from trig-ger/fix_lack_map_emplace

Fix compilation for C++ lib versions without std::map::emplace()
Merge pull request #1421 from trig-ger/midi_tempo

Fix #37971: Tempo from MIDI file not imported
Merge pull request #1420 from MarcSabatella/37646-system-ties

fix 37646: bad continued tie with seconds
Merge pull request #1414 from Igevorse/bugs1

fix #37206: Export channels to midi works
Merge pull request #1388 from MarcSabatella/fingering-improvements

Fingering improvements
fix #37881