add temporal filter, disable it by default

.gitattributes

models/nnlf_hop_temporal_model_float.sadl

models/nnlf_hop_temporal_model_int16.sadl

source/App/DecoderApp/DecApp.cpp

source/App/DecoderApp/DecAppCfg.cpp

source/App/DecoderApp/DecAppCfg.h

source/App/EncoderApp/EncApp.cpp

source/App/EncoderApp/EncAppCfg.cpp

source/App/EncoderApp/EncAppCfg.h

source/Lib/CommonLib/NNFilterHOP.cpp

source/Lib/CommonLib/NNFilterHOP.h

source/Lib/CommonLib/NNInference.h

source/Lib/CommonLib/Picture.h

source/Lib/CommonLib/Slice.h

source/Lib/CommonLib/TypeDef.h

source/Lib/DecoderLib/DecLib.cpp

source/Lib/DecoderLib/DecLib.h

source/Lib/DecoderLib/VLCReader.cpp

source/Lib/EncoderLib/EncCfg.h

source/Lib/EncoderLib/EncGOP.cpp