JVET-P0803: Combined cleanup of MIP

source/Lib/CommonLib/CommonDef.h

source/Lib/CommonLib/IntraPrediction.cpp

source/Lib/CommonLib/IntraPrediction.h

source/Lib/CommonLib/MatrixIntraPrediction.cpp

source/Lib/CommonLib/MatrixIntraPrediction.h

source/Lib/CommonLib/MipData.h

source/Lib/CommonLib/TypeDef.h

source/Lib/CommonLib/Unit.cpp

source/Lib/CommonLib/Unit.h

source/Lib/CommonLib/UnitTools.cpp

source/Lib/CommonLib/UnitTools.h

source/Lib/DecoderLib/CABACReader.cpp

source/Lib/DecoderLib/DecCu.cpp

source/Lib/EncoderLib/CABACWriter.cpp

source/Lib/EncoderLib/IntraSearch.cpp

source/Lib/EncoderLib/IntraSearch.h