[WIP] Feature/licenses check

What does this MR do?

Adds a tests step that checks compatibility of licenses in vendored packages.

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Documentation created/updated
• Tests
  • Added for this feature/bug
  • All builds are passing
• Branch has no merge conflicts with master (if you do - rebase it please)

What are the relevant issue numbers?

Resolves #1608