Support for Display Overlays Information (DOI) SEI

cfg/sei_vui/display_overlays_info.cfg

source/App/DecoderApp/DecApp.cpp

source/App/DecoderApp/DecApp.h

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/CommonDef.h

source/Lib/CommonLib/SEI.cpp

source/Lib/CommonLib/SEI.h

source/Lib/CommonLib/TypeDef.h

source/Lib/DecoderLib/SEIread.cpp

source/Lib/DecoderLib/SEIread.h

source/Lib/EncoderLib/EncCfg.h

source/Lib/EncoderLib/EncGOP.cpp

source/Lib/EncoderLib/SEIEncoder.cpp

source/Lib/EncoderLib/SEIEncoder.h

source/Lib/EncoderLib/SEIwrite.cpp

source/Lib/EncoderLib/SEIwrite.h