[Cin] Checked into GIT several hardware specific mods

[Phyllis Smith]

Outcome from all of the hard work that Andrew did with Terje for the newer
Intel hardware performance enhancements has been checked into GIT.  Here is
a rough description of what was checked in.

- 12 new or replaced "vaapi" encoding render formats (vainfo shows if
supported)
- 12 new or replaced "qsv" encoding render formats (requires Intel HW build)
- patches to ffmpeg.C and ffmpeg.h to support the above
- 3 new Termux (Android) encoding render formats - 2 mediacodec which will
only work on Android + an mpeg one that works everywhere
- mjpegtools patch to accommodate clang compiling continuance

There should be no impact to standard usage of CinGG but users need to be
especially aware of the fact that using a render encoding format that
requires specific hardware/software implementation will give an error. In
addition, the standard appimage releases will not provide the availability
to use this Intel hardware.  This is the same as the inability to use
vdpau/vaapi from those same appimages since the appimages are created on a
computer without the end users same hardware.  I need to update the Manual
to make this clear in the Hardware video acceleration section.
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