Merge branch 'JVET-Y0129' into 'master'

source/Lib/CommonLib/CommonDef.h

source/Lib/CommonLib/InterPrediction.cpp

source/Lib/CommonLib/InterPrediction.h

source/Lib/CommonLib/TypeDef.h

source/Lib/CommonLib/UnitTools.cpp

source/Lib/DecoderLib/CABACReader.cpp

source/Lib/DecoderLib/DecCu.cpp

source/Lib/DecoderLib/DecCu.h

source/Lib/EncoderLib/CABACWriter.cpp

source/Lib/EncoderLib/EncCu.cpp

source/Lib/EncoderLib/EncCu.h

source/Lib/EncoderLib/InterSearch.cpp

source/Lib/EncoderLib/InterSearch.h