MusicXML: Correctly export all trill types

[rettinghaus]

This PR addresses some more of the problems reported in #17553:

• the stroke and wedge articulations are now exported as spiccato and staccatissimo respectively
• the upprall, downprall, and prallprall lines are now exported as wavy-line elements with the correct start glyph as other-ornament with a smufl attribute

[rettinghaus]

@hhpmusic Would you please check this one out?

[hhpmusic]

Thanks, but I can't test it. All files export as 0-byte Musicxml files. The Musicxml export module completely fails.

[rettinghaus]

Weird. I'll check.

[hhpmusic]

I created another issue. It exports compressed xml well, but uncompressed 0-byte.

[hhpmusic]

Strange, at my side it only converts compressed one.

[rettinghaus]

@hhpmusic I did a rebase. Would you please be so kind to test again?

[hhpmusic]

Thanks, it works. However, the prallprall line just exports a wavy line. Is this correct? I hear the playback is not the same as a usual trill.

[rettinghaus]

I can't speak for the playback, but for MusicXML a Prall Prall is just a wavy line.

[hhpmusic]

If so, this is fixed successfully. Thanks!

[cbjeukendrup]

@rettinghaus You probably rebased in an unfortunate moment and therefore there are now a lot of commits that don't belong here. Could you try rebasing again?

[Jojo-Schmitz]

Actually @igorkorsukov did that bogus rebase, as far as I can tell

[igorkorsukov]

Actually @igorkorsukov did that bogus rebase, as far as I can tell

Sorry for the inconvenience

[rettinghaus]

@oktophonie mind to have a look at this one?