Fix license headers in reco/littrack directory

In case of two institutes in the copyright statement add both cities. Add commiter if missing.

added CI/CD label

Dear @s.lebedev, @andrey.lebedev,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

Fine with me.

Fine with me as well.

Thanks for the fast review. I will merge now.

merged