Merge branch 'st-456-refactor-tests' into 'master'

.gitignore

.gitlab-ci.yml

charts/Makefile

docker-compose/.env

docker-compose/Makefile

docker-compose/archiver.yml

docker-compose/astor.yml

docker-compose/hdbpp_viewer.yml

docker-compose/itango.yml

docker-compose/jive.yml

docker-compose/logviewer.yml

docker-compose/pogo.yml

docker-compose/rest.yml

docker-compose/tango.yml

docker-compose/tangotest.yml

docker/deploy/.release

docker/deploy/Dockerfile

docker/tango/ska-python-buildenv/test/Makefile

docker/tango/ska-python-buildenv/test/SimpleTest.py

docker/tango/tango-archiver/test/Makefile