JVET-AJ0124: QP per block

source/App/DecoderApp/DecApp.cpp

source/App/DecoderApp/DecApp.h

source/Lib/CommonLib/CodingStructure.h

source/Lib/CommonLib/NNFilterUnified.cpp

source/Lib/CommonLib/NNInference.h

source/Lib/CommonLib/Picture.cpp

source/Lib/CommonLib/Picture.h

source/Lib/CommonLib/TypeDef.h

source/Lib/DecoderLib/DecLib.cpp

source/Lib/DecoderLib/DecSlice.cpp

source/Lib/EncoderLib/EncGOP.cpp

source/Lib/EncoderLib/EncSlice.cpp

training/data_loader/data_loader.py