Add a new utility to deal with raw (headerless) 4:2:2 data from digital
(IIDC) cameras. The uncompressed 4:2:2 data is not '422 planar', instead it
is packed as either YUYV or UYVY. This program repacks the data into 4:2:2
planar and puts on the YUV4MPEG2 header and FRAME markers.
