fix #23680: import all courtesy accidentals
fix #23680: xml-import all courtesy accidentals
fix #23680: xml-import all courtesy accidentals
fix #3325: layout of multi-voice seconds and unisons
fixes, tweaks, and optimizations
handle dots
fix double dot and one case with single dot
fix #22463: correct accidental placement for offset chords
optimizations and debug statements
correct determination of stem width
improve accidental positioning
fix sharp overlap/undercut
tighter spacing between sharp & natural
switch to zig-zag accidental stacking order
fix accidental position with multiple seconds
fix for accidental position on first ledger line
add vtests
make sure floating point round doesn't interfere with detection of accidental conflict
fix #23223: Count in for xml files is now correct
improve font independence of accidental layout