Fix #23059: Accented notes in guitar pro files now displayed.
Fix #23060: Added support for heavily accented notes in the GP5 format
Fix #23055: Support for tremolos in GP4 and GP5 file formats
Fix #23057: Trills in GP4 and GP5 files are now displayed.
Merge branch 'master' of https://github.com/jpirie/MuseScore

Conflicts:
	mscore/importgtp.cpp