makemkvchapters should include end time for 'full transfer' edition

[dericed]

See

mm/makemkvchapters

Line 73 in 4c35508

<ChapterTimeStart>00:00:00.000000000</ChapterTimeStart>

, either the edition should be 'un-ordered' or the chapteratom should also include a chaptertimeend. See https://mailarchive.ietf.org/arch/msg/cellar/4rJSOCoSy1yTTFiSIR2NLSTFeQQ.

[aeschweik]

WIP at #235