dequant SSE optimisation
SIMD optimizations for quantization
Merge branch 'hm10.0_simd' of https://github.com/OpenHEVC/openHEVC into hm10.0_simd
fixed SSE dequant
multiple optimisations + unweighted prediction
weighted and unweighted prediction optimisation, removal of duplicate code
diverse optimisations, fixed huge memory write due to setting of aligned tables when unnecessary
last change before merge :
-fno-vectorize in compiler
-defined after #elif in dsp_template
Merge remote-tracking branch 'origin/hm10.0_tiles' into hm10.0_simd

Conflicts:
	libavcodec/hevc.c
	libavcodec/hevc.h
	libavcodec/hevcdsp_template.c
quick fix