Log Message:
mkvtoolnix: updated to 63.0.0

Version 63.0.0 "Everything" 2021-11-14

New features and enhancements

* mkvmerge: AC-3 parser: E-AC-3 with BSID values > 10 and ≤ 15 are recognized
  now, too.
* mkvmerge: when using language codes for track selection (e.g. `-a und,en`)
  all tracks that do not have a language property (due to their container not
  providing one, e.g. AVIs) will be treated as if they did have one set to
  `und` ("undetermined") as that is the language the track will have in the
  Matroska file anyway. Before this change it wasn't possible to match such
  tracks via language codes.
* MKVToolNix GUI: only on Windows: when compiled with Qt ≥ 5.14 and < 6 (which
  is the case for the officially provided binaries) fractional screen scaling
  will be enabled. This means that the GUI will be scaled appropriately if
  Windows is set to 125%, 150% or 175% instead of being too small or too
  large.
* MKVToolNix GUI: the spinner in the bottom right corner will now be hidden
  when no jobs are currently running.
* MKVToolNix GUI: header editor: a new column has been added to the tree view
  showing the status of the "track enabled" flag. The information is also
  shown on the track overview page on the right.
* MKVToolNix GUI: header editor: users can now reorder tracks by dragging &
  dropping.

Bug fixes

* mkvmerge: AVI reader: fixed reading AVI files that contain `vprp` video
  properties header chunks; reading aborted too early.