MKVToolNix GUI: multiplexer: added controls for all the video colour information & the video projection information
The JSON identification format version number has been bumped to v15
The properties are reported for container types for which mkvmerge supports reading them (Matroska & MP4). mkvmerge: added colour information, colour mastering meta information & video projection information properties to the JSON identification format. That way one bogus timestamp cannot cause the rest of the frames to not be interleaved properly with the other audio & video packets.
mkvmerge: HDMV PGS subtitles: mkvmerge now tries to detect bogus timestamps (where the current timestamp is two hours or more after the previous timestamp) & correct them to something more sensible (1s after the previous timestamp).