Package bugfixes

A bugfix issue was issued (19.06r5) for the dvda-author-package with major fixes to VIDEO_TS authoring, using the fork of lplex on this site.
This is used for either burning DVD-Video "audio" discs playable on any standard DVD player or to create DVD-Audio/Video hybrid discs.
Windows builds added against Qt5-12.4 static (MSYS2 project).