Quicktime for Linux

# Utilities

Doing `make util` builds several small utilities.

dump loads a quicktime movie and dumps the contents of Quicktime for Linux's tables, including the fields which aren't used.

qtinfo dumps some formatted information about a movie.

make_streamable copies a movie to a new movie which can be played before it is completely downloaded.

dechunk If a video track is present, this dumps every frame into a separate file. If the video uses RAW compression, every frame is dumped into a ppm file.