fix #25765 : Fix crash when clicking bar time

setScore() was overridden to an empty function
so the score was never set. Now using the setScore()
inherited from MuseScoreView
Open strings in StringData.

Allows to mark strings as open (non-fretted).
Defaults to fretted, keeping backward-compatibility with existing scores.
Adds an attribute `open="1"` in score (and instruments.xml) string data (defaults to "0").

Benefits:
- allows future support (also in TAB's) for string instruments with non-fretted strings (mainly but, I think, not only the lute family)
- gives correct fretting for non-fretted strings
- instrument range can more easily and automatically linked to actual string tuning
- as this will be eventually needed for better TAB support, the score reading/writing will be already able to manage it.
Small cosmetic changes to mscoreTAB fonts
Added comments and spaces
regression: fix split staff
update mtest
fix #29746: wrong staff on percussion note entry
Merge pull request #1140 from MarcSabatella/29746-percussion-entry

fix #29746: wrong staff on percussion note entry
fix regression: add instrument
fix #28471 (again)
fix #29651
fix #28401: transpose chords appropriately in parts
fix #29701
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 a few FU the two parts, metrics unchanged)
- "wigglesawtooth" and "wigglesawtoothwide" (U+EABB, U+EABC) centred in glyph width
- All recently added or modified glyphs now pass validation
fix #29796
fix #28706 Hangup in converter mode with MusicXML source
fix 2 compiler warnings

and convert enum DrumsetKi9nd into an enum class in the due course
Fix missing "FullName" line in .sfd source
Changed "Base file name" to the file name actually used.
Merge pull request #1144 from MarcSabatella/28401-transpose-chords

fix #28401: transpose chords appropriately in parts
Merge pull request #1150 from lvinken/28706-hangup-osx-convertermode

fix #28706 Hangup in converter mode with MusicXML source