Create codeql.yml

[elharo]

Experimenting to see if this is useful

[github-advanced-security]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

[elharo]

Looks like it fails the rat checks

[elharo]

I'm not sure it's kosher to just add the license like that. It's Github provided code, not something I authored directly.

[slachiewicz]

So it looks like it's no go for this CodeQL