Includes rules, and optional needs

• Add DIND example @firecow
• Fix error message with artifacts not being copied, even though only reports were specified @haydenseitz
• Support optional artifacts in needs @kouk
• Add circular !reference detection @firecow
• Fix bug with double quotes and regex in rules. @firecow
• Service container logs into .gitlab-ci-local folder @greenmaid
• Exclude .gitlab-ci-local folder from artifacts/cache rsync commands @firecow
• Add support for rules in includes @gbenguria
• Use Config instead of ContainerConfig in healthcheck routine @peterbbeu
• Mount tmp folder to services, to prevent crash @greenmaid
• Add --clean / --no-cleanup cli option @firecow @moberghammer

Thanks to @atli-c @LauJosefsen @FnuGk and @byrdal for reviewing pull requests