Fix frame-packing==5 with some decoders

The spec seems to suggest that frame-packing==5 requires the SEI on every frame,
not just keyframes. This fixes frame-packing==5 3D playback on some decoders
(Playstation 3, Sony W8 series, possibly others).
Add support --chapter/--no-container-sar/--no-remux/--fragments.

These are L-SMASH MP4 muxer specific options.
Increase the temporal buffer size for Unicode support

Although the maximum size of one character in UTF-16 is 4bytes,
sizeof(wchar_t) is 2bytes on Windows.
Also, non-ASCII characters requires 2bytes in ANSI code page.
The existing buffer size is insufficient.
Film Grain Optimization
Fade Compensation
Log file
Encoding time
Cosmetic
New experimental AQ mode (modification of Auto-variance AQ)
Print video info with lavf/ffms demuxer
Detect color matrix with lavf/ffms demuxer
Fix AviSynth/swscale color space converting matrix
don't show opencl help in opencl disabled builds
version: print whether opencl is disabled or enabled
AviSynth 16bit hack
Skip bit depth filter when possible
Use f3kdb for bit depth conversion when needed

This fixes high bit depth AviSynth input with input-depth != 16 or BIT_DEPTH
Level force
Profile force
Remove stats before renaming