JVET-Q0438: Monochrome bug fixes

source/App/EncoderApp/EncAppCfg.cpp

source/Lib/CommonLib/CodingStructure.cpp

source/Lib/CommonLib/Hash.cpp

source/Lib/CommonLib/InterPrediction.cpp

source/Lib/CommonLib/IntraPrediction.cpp

source/Lib/CommonLib/LoopFilter.cpp

source/Lib/CommonLib/TypeDef.h

source/Lib/CommonLib/Unit.cpp

source/Lib/CommonLib/UnitPartitioner.cpp

source/Lib/DecoderLib/DecCu.cpp

source/Lib/EncoderLib/CABACWriter.cpp

source/Lib/EncoderLib/EncAdaptiveLoopFilter.cpp

source/Lib/EncoderLib/EncCu.cpp

source/Lib/EncoderLib/EncReshape.cpp

source/Lib/EncoderLib/InterSearch.cpp

source/Lib/EncoderLib/IntraSearch.cpp

source/Lib/Utilities/VideoIOYuv.cpp