Update CUVID headers to CUDA SDK 6.5
Plumbing for HEVC HWAccel
Rename AVC1AnnexBConvert -> AnnexBConverter

It can also be used for HEVC
CUVID HEVC decoding support
Add HEVC hwaccel option in the GUI
cuvid: Implement proper AnnexB conversion for HEVC extradata
Fix an error in HEVC AnnexB extradata conversion
Add a CH265Nalu class
cuvid: Check if the HEVC profile is compatible with CUVID decoding