* Add NVIDIA Codec support for Windows, Linux and Linux for Tegra
* [ffnvcodec] Fix typos, add/remove comments
* Bump nvcodec version to 9.1.23.1
* Update version number as per change request
* Use PORT variable instead of hardcoded portname
* Identify the release the hash pertains to
* Find nvcodec in 'installed' instead of 'packages'
* Force FFmpeg to look for nvcodec headers in the installed directory instead of /usr/lib/pkgconfig.
* Use p option on cygpath to convert full path in case it contains more than one entry
