Improve gitlab integration, added cookiecutterrc

[sanderegg]

What do these changes do?

• add reporting of tests in merge requests in gitlab
• gitlab to use docker in docker mode
• add cookiepatcher
• add devel mode in cookie
• added how to bake for general usage
• fixed entrypoint permission
• use env variables in dockerfile
• tests only check dockerization instead of internals
• various fixes

Related issue number

Checklist

• [x] I think the code is well written
• [x] Unit tests for the changes exist
• [x] Documentation reflects the changes
• [x] Runs in the swarm
• [x] If you design a new module, add your user to .github/CODEOWNERS

connects ITISFoundation/osparc-simcore#664 connects ITISFoundation/osparc-simcore#574 connects ITISFoundation/osparc-simcore#653 connects ITISFoundation/osparc-simcore#629