IMF CPL Adapter

[ssteinbach]

This issue is a placeholder for something that has come up as a question but is not currently a priority.

[jminor]

Reference docs: http://ieeexplore.ieee.org/document/7560854/

[jminor]

FYI, we made some progress on a 1st draft of IMF CPL writing today. The adapter needs the clips to be pre-decorated with a bunch of MXF metadata, so this will require some help from a media linker and/or a script to scan the MXFs for the required info.

[jminor]

This might be a handy way to get metadata from the MXFs: https://github.com/markreidvfx/pymxf