Check license.txt files for GPL 2 or 3

The MR is just a proof of concept. It has not been tested yet.

It's also pending changes on the "curl" command once 🐛 _GITLAB_TEMPLATES_REF value in variables needs updating, and provide override variables for Curl Fixed is merged.

We will also investigate this: https://docs.gitlab.com/ee/user/group/compliance_frameworks.html

With the above, we might be able to check even projects not on GitLab CI.

Would you like me to get this mergeable again, and so we can continue work on it?

fjgarlin → closed merge request !120

Not worth it. This was a POC so we can close and re-open if needed in the future.