fix commit : hevc/rext: fix sps_strong_intra_smoothing_enable_flag and
intra_smoothing_disabled_flag for 4:4:4
hevc/rext: fix pcm and add transform skip rotation rext tool
Merge branch 'rext' of https://github.com/OpenHEVC/openHEVC.git into
rext

Conflicts:
	libavcodec/hevcpred_template.c
hevc/rext: more fixes on pcm
fix previous commit
hevc/rext: add new tool "transform_skip_context_enabled_flag"
update for no_output_of_prior_pics_flag and pic_output_flag
Merge branch 'hevc_ffmpeg' into rext

Conflicts:
	libavcodec/version.h
Merge branch 'hevc_ffmpeg' into rext
Merge branch 'hevc_ffmpeg' into rext
Fix CMakeLists.txt
Merge branch 'rext' into rext_new_mc
Merge branch 'rext_new_mc' of https://github.com/OpenHEVC/openHEVC.git into rext_new_mc