Software changes with respect to the adoption from proposal JVET-O0455:
Control the maximum number of IBC merge candidates independently from
the maximum number of regular merge candidates.

initial commit of JVET_O0119_BASE_PALETTE_444: palette in HEVC and palette mode coding in JVET-N0258

JVET-O0265/JVET-O0629/JVET-O0418/JVET-O0329/JVET-O0378/JVET-O0411/JVET-O0279:Simplified motion field storage for TPM

It cleans up old ISP code that is no longer used anymore. The code was used to allow only one ISP split depending on the block size. However, this functionality is not needed anymore after the adoption of JVET-N0308 during the Geneva Meeting in March, which limited the usage of ISP to CUs with a maximum size of 64x64 samples. This clean-up eliminates various unnecessary checks and improves the readability of the code.

Macro: JVET_O0366_AFFINE_BCW

JVET-O0219: LFNST transform set selection for a CCLM coded block. Remove duplicate code. Fix a bug due to convert MIP mode to convensional mode

JVET_O0078_SINGLE_HMVPLUT: Single HMVP table for all CUs inside the shared merge list region for IBC

JVET-O0219: LFNST transform set selection for a CCLM coded block. Remove duplicate code. Fix a bug due to convert MIP mode to convensional mode

  - Fix uses of cs->slice in post-decode steps (loop filtering, sao, dmvr set refined motion field)

  - Add isSameSliceAndTile check for top CTU QP prediction.