Override the behaviour of d2v_source's _ColorRange set approach in PD2V. Instead, PD2V will try to obtain the color
range of the original input video of the D2V file. This would be the demuxed MPEG stream since the input file path
might not be a video container, but may be a D2V file instead.
If no color range is found in the MPEG stream, then limited/TV range will be assumed as there's more of a chance
that MPEG media will be limited/TV ranger over full/PC range.
For more information on this, see https://github.com/dwbuiten/d2vsource/pull/41