How are the chance for adding an accidentalQuarterToneSharpZimmermann

[bwbohl]

I observed that there is a glyph range “Stein-Zimmermann accidentals” (24-EDO) (U+E280–U+E28F). In my work at the Zimmermann complete edition project, it has become obvious that this glyph range misses the Zimmermann-specific notations of the quarter and three-quarter sharps.

• The quarter sharp is essentially a regular sharp missing the lower 'horizontal' line.
• The three-quarter sharp is a combination of the quarter-tone sharp followed by a regular sharp

Zimmermann uses this notation in his handwriting and also the print publications followed his model.
How are the chances of adding these to the free codepoints in the block?

[bwbohl]

@dspreadbury I'm delighted to see this has been added to the SMuFL 1.5 milestone!
There is yet another variant of the three-quarter sharp to be added from Zimmermann’s autographs: a normal sharp with a third 'horizontal' line.
If it helps, I'm also willing to file a pull request ;-)