Reject video with SMPTE-2084 (Perceptual Quantizer - PQ) color transfer characteristics.

Mux currently supports videos with 8-bit color profiles. Converting video from 10-12 bit formats – such as HDR, HLG, and DolbyVision – to spec compliant 8-bit video, such as BT.709, isn’t something that we currently support. Previously all 10- and 12-bit colorspace assets would be naively transcoded to 8-bit video, but streams that originally had PQ colorspace would fail to play on some devices. In the future, we may improve our handling of these files and accept them. However, in an effort to provide more reliable functionality, we will now fail the ingest task. Please convert these files to 8-bit color, such as 4:2:0 mpeg(tv) range video BT.709, before sending them to ingest into Mux.