Rename MP4GeneralSegmenter to MultiSegmentSegmenter and MP4VODSegmenter
to SingleSegmentSegmenter.
Also drop MP4 from MP4Fragmenter and MP4Segmenter.
Change-Id: I5cefb88164516ec3588e0e3333a16f05b6277e7b
The information is generated by Edwin's copyright.py script with some
minor manual modifications.
Chromium's original copyright notice is not replaced.
Also add LICENSE file taken from
https://sites.google.com/a/google.com/ospo/releasing#TOC-BSD-License
Change-Id: I231f09af96a0a611b1ca81e95cab82e12d7f529b