merge again with develop, compiles only

CHANGELOG.md

CONTRIBUTING.md

NOTICE.md

README.md

README.txt

ci-scripts/main.py

cmake_targets/CMakeLists.txt

doc/d2d_emulator_setup.txt

executables/nr-ru.c

executables/nr-softmodem-common.h

executables/nr-softmodem.c

executables/nr-softmodem.h

executables/nr-uesoftmodem.c

executables/nr-uesoftmodem.h

executables/softmodem-common.c

executables/softmodem-common.h

nfapi/oai_integration/nfapi_pnf.c

nfapi/oai_integration/nfapi_vnf.c

nfapi/open-nFAPI/pnf/public_inc/nfapi_pnf_interface.h

nfapi/open-nFAPI/pnf/src/pnf_p7.c