Clean-up of mscore font

- Glyphs present in both legacy Emmentaler and SMuFL encoding have been unified: the Emmentaler code point now contains a reference to the SMuFL code point
- Large parentheses (U+E094, U+E095) changed to use the same graphic style of other Emmentaler parentheses (metrics not changed)
- Intersecting path in 128th rest (U+E10D) corrected
- Wrong path direction in U+E180 corrected
- Intersecting path in "volumeswell" (U+E845) corrected (required to separate the two parts by a few FU, metrics unchanged)
- "wigglesawtooth" and "wigglesawtoothwide" (U+EABB, U+EABC) centred in glyph width
- All recently added or modified glyphs now pass validation
- All (all?) glyphs now have reasonable Type1 hints