Show channel info for track

[HeresJonny]

At the moment user cannot see in the tracklist for stereo and multichannel disc if a track is stereo or multichannel.

[AlwinEsch]

If I will look wrong in Kodi in the near future, for whatever reason, content from a packed audio decoder file will not be displayed in Kodi (in this case the *.iso, but also all other audio decoder add-ons).

[AlwinEsch]

Strangely enough, the "genre" is in the music selection window in Kodi and everything is there on the full screen.

[HeresJonny]

This might have to do with taglib which also needs to be updated, cf. https://forum.kodi.tv/showthread.php?tid=355493 - not sure.

[AlwinEsch]

Found the error place: https://github.com/xbmc/xbmc/pull/20202/files#diff-55c63388b31fd8c41ce690183b2674113cd27ea2044031e48852dde681f9d285R142

Searched stupid to find bugs and started to rewrite it from scratch.
And in the end I found out there was just one stupid line missing 😅.

Request to Kodi is here: xbmc/xbmc#20202
And also look at a backport to Kodi 19 Matrix so that it is included in 19.2 (or 3).