Fix for Ticket #1296: Re-allow packed YUV output after RPR integration
Specifying --PYUV=1 in the VTM decoder command-line used to allow packed YUV output during decoding, see also VVCSoftware_VTM/doc/pyuv_format.pdf
CHECK( writePYUV, "Not supported" ); was introduced last year which completely disables support for PYUV output, even though the respective code is still present and, when removing the above CHECK, decoding to PYUV format seems to work fine (at least on the 10-bit SDR CTC bitstream I tested it with).
This merge request removes the
CHECK and adds some missing code in the
if (writePYUV) path of the code.