improved display of chord names

Folks,


Merge Request !2972 aims to improve the display of chord names, in
particular the display of accidentals, by using text variants of
accidental glyphs.

  https://gitlab.com/lilypond/lilypond/-/merge_requests/2972

Attached you can find two images that show the current and the planned
appearance of some chords.

Please comment.


    Werner


======================================================================


Chords = \chordmode {
  c4 c4:maj7.11+ b4:7.5+9+ es4:2 |
  g4:m dis4:maj7 a4:dim7 a4:aug |
}

<<
  \new ChordNames \Chords
  \new Staff \Chords
>>