Merge remote-tracking branch 'origin/master' into update-charts

ci-scripts/Dockerfile.traffic.generator.ubuntu18.04

ci-scripts/Jenkinsfile-GitLab-Tutorial-Check

ci-scripts/checkTutorialHtmlReport.py

ci-scripts/validateN4UpfReportMessages.py

docker-compose/core-network.py

docker-compose/docker-compose-basic-nonrf.yaml

docker-compose/docker-compose-basic-nrf.yaml

docker-compose/docker-compose-basic-vpp-nonrf.yaml

docker-compose/docker-compose-basic-vpp-nrf.yaml

docker-compose/docker-compose-gnbsim-vpp.yaml

docker-compose/docker-compose-gnbsim.yaml

docker-compose/docker-compose-mini-nonrf.yaml

docker-compose/docker-compose-mini-nrf.yaml

docker-compose/docker-compose-no-privilege.yaml

docker-compose/docker-compose-slicing-basic-nrf.yaml

docker-compose/docker-compose-slicing-ransim.yaml

docs/BUILD_IMAGES.md

docs/DEPLOY_HOME.md

docs/DEPLOY_SA5G_BASIC_STATIC_UE_IP.md

docs/DEPLOY_SA5G_SLICING.md