fix #23680: import all courtesy accidentals
fix #23680: xml-import all courtesy accidentals
fix #23680: xml-import all courtesy accidentals
fix #23038: make tooltip translatable

and also generate the list of meta tags on the fly and from the current
score. Show their current values too.
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 #24773