Merge branch 'master' into 'NNPF_SpatialExtrapolation'

cfg/multi-layer/encoder_lowdelay_vtm_l1.cfg

cfg/multi-layer/layer1_gop16_randomaccess.cfg

cfg/multi-layer/layer1_gop_lowdelay.cfg

cfg/multi-layer/layer1_gop_lowdelay_P.cfg

cfg/multi-layer/layer1_gop_randomaccess.cfg

cfg/multi-layer/two_layers.cfg

cfg/multi-layer/two_layers_scalable.cfg

cfg/sei_vui/sei_processing_order.cfg

cfg/sei_vui/text_description_information.cfg

doc/software-manual.tex

source/App/EncoderApp/EncApp.cpp

source/App/EncoderApp/EncAppCfg.cpp

source/App/EncoderApp/EncAppCfg.h

source/Lib/CommonLib/IbcHashMap.cpp

source/Lib/CommonLib/Picture.cpp

source/Lib/CommonLib/Picture.h

source/Lib/CommonLib/RdCost.cpp

source/Lib/CommonLib/RdCost.h

source/Lib/CommonLib/SEI.cpp

source/Lib/CommonLib/SEI.h