ktmidi 0.5.0 release (and updates)

[atsushieno]

Today I have released ktmidi 0.5.0, to support most of MIDI 2.0 June 2023 updates. It is a big release that involves many changes. It is likely the first SMF2 implementation in the world, kind of.

• All UMP classes (UmpFactory, UmpRetrieval, UmpTranslator) support the new message types and messages such as UMP Stream and Flex Data in June 2023 updates.
• Midi2Music, including Midi2ReaderWriter (.read() and .write()) now follows "MIDI Clip File" (SMF2) specification, in that their tracks outputs SMF2CLIP, DCS, DCTPQ, DCS, Start of Clip, etc.
  • Since "MIDI Container File" (SMF2 "multi-track") specification is still not there, we keep using our own file format, though the entire file structure had been updated.
• atsushieno/mugene-ng is upgraded to 0.4.0 to generate the new Midi2Music files. You can directly code your Midi2Music generator, or use this MML compiler to easily generate them. VSCodium extension is also updated.
• Midi2Player is also updated to work with the latest file format. I don't have any MIDI2 player app yet though.
• Updated some native builds (sections in build.gradle.kts) so that it would produce more native Maven packages whenever they cross-compile on Linux (GitHub Actions).
• It is an API-breaking upgrade in 0.x releases. Removed some deprecated ones.

If you found any issues please report them on this repo (or mugene-ng if it is about the MML compiler).