Merge remote-tracking branch 'origin/develop' into ue-phy-sync-improvements

ci-scripts/Jenkinsfile-GitLab-Container

ci-scripts/Jenkinsfile-gitlab

ci-scripts/cls_containerize.py

...ts/conf_files/enb.band38.lte_2x2_tm2.100PRB.usrpn310.conf

ci-scripts/epc.py

ci-scripts/main.py

ci-scripts/ran.py

ci-scripts/sshconnection.py

ci-scripts/stats_monitor.py

ci-scripts/stats_monitor.py.old

ci-scripts/stats_monitor_dev.py

ci-scripts/xml_files/container_5g_rfsim.xml

ci-scripts/xml_files/fr1_sa_oaiue_x300.xml

ci-scripts/xml_files/lte_2x2_tm1_quectel.xml

ci-scripts/xml_files/lte_2x2_tm2_quectel.xml

cmake_targets/build_oai

cmake_targets/tools/build_helper

doc/RUNMODEM.md

docker/Dockerfile.build.rhel8.2

docker/Dockerfile.build.ubuntu18