New implementation of docker executors on CI server

.gitignore

.gitlab-ci-ssh.yaml

.gitlab-ci.yaml

docker-compose-ci.yml

hive/cli.py

scripts/ci/backup/.gitlab-ci-ssh.yaml

scripts/ci/child-pipelines/.gitlab-ci-child-pipeline-1.yaml

scripts/ci/child-pipelines/.gitlab-ci-child-pipeline-2.yaml

scripts/ci/child-pipelines/.gitlab-ci-dynamic.yaml

scripts/ci/collect-db-stats.sh

scripts/ci/create-db.sh

scripts/ci/dump-db.sh

scripts/ci/get-postgres-version.sh

scripts/ci/goodies/.gitlab-ci-goodies.yaml

scripts/ci/hive-server.sh

scripts/ci/hive-sync.sh

scripts/ci/hived-node/config.ini

scripts/ci/hived-node/run.sh

scripts/ci/postgres/10/postgresql.conf

scripts/ci/postgres/12/postgresql.conf