Merge branch 'JVET-O0549_ENCODER_ONLY_FILTER' into 'master'

cfg/encoder_lowdelay_P_vtm.cfg

cfg/encoder_lowdelay_vtm.cfg

cfg/encoder_randomaccess_vtm.cfg

doc/software-manual.tex

source/App/EncoderApp/EncApp.cpp

source/App/EncoderApp/EncAppCfg.cpp

source/App/EncoderApp/EncAppCfg.h

source/Lib/CommonLib/Buffer.h

source/Lib/CommonLib/TypeDef.h

source/Lib/EncoderLib/EncCfg.h

source/Lib/EncoderLib/EncGOP.cpp

source/Lib/EncoderLib/EncTemporalFilter.cpp

source/Lib/EncoderLib/EncTemporalFilter.h

source/Lib/Utilities/program_options_lite.cpp

source/Lib/Utilities/program_options_lite.h