Merge branch 'dockercompose' into 'master'

docker-compose/amf-healthcheck.sh

docker-compose/core-network.sh

docker-compose/docker-compose-no-nrf.yaml

docker-compose/docker-compose.yaml

docker-compose/mysql-healthcheck.sh

docker-compose/nrf-healthcheck.sh

docker-compose/oai_db.sql

docker-compose/smf-healthcheck.sh

docker-compose/spgwu-healthcheck.sh

docs/BUILD_IMAGES.md

docs/CONFIGURE_CONTAINERS.md

docs/DEPLOY_HOME.md

docs/DEPLOY_PRE_REQUESITES.md

docs/DEPLOY_SA5G_WITH_DS_TESTER.md

docs/dsTestScenarios/dsTestScenario.xml

docs/images/5gCN.jpg

docs/images/scenario-1.png

docs/images/scenario-2.png

docs/images/smartevent.png

docs/images/start.png