Add raw_twk to default modules

Created originally on Bitbucket by daniel_fort (Daniel Fort)

Changesets for this Pull Request have not been imported, because it had been already declined on Bitbucket. Marked as closed by the import user.

raw_twk required for 10bit 12bit in camera playback with mlv_play.

Fixes a minor annoyance when compiling the raw_video_10bit_12bit branch.