JVET-AI0136: Adaptive dual tree in inter slices (Test 1.1c)

cfg/encoder_randomaccess_ecm.cfg

source/App/DecoderApp/DecAppCfg.cpp

source/App/EncoderApp/EncApp.cpp

source/App/EncoderApp/EncAppCfg.cpp

source/App/EncoderApp/EncAppCfg.h

source/Lib/CommonLib/Buffer.h

source/Lib/CommonLib/CodingStructure.cpp

source/Lib/CommonLib/CodingStructure.h

source/Lib/CommonLib/Common.h

source/Lib/CommonLib/CommonDef.h

source/Lib/CommonLib/ContextModelling.cpp

source/Lib/CommonLib/ContextModelling.h

source/Lib/CommonLib/Contexts.h

source/Lib/CommonLib/Contexts_ecm12.inl

source/Lib/CommonLib/Contexts_ecm13.inl

source/Lib/CommonLib/Contexts_ecm14.0.inl

source/Lib/CommonLib/DepQuant.cpp

source/Lib/CommonLib/InterPrediction.cpp

source/Lib/CommonLib/IntraPrediction.cpp

source/Lib/CommonLib/LoopFilter.cpp