OVT-7937: isLatestVersion check

To KoodiVersioDao
OVT-7937: isLatestKoodiVersion check

Into KoodiBusinessService
Set Transactional to read only

When querying code element.
Refactor initialization of relations
Update swagger
Cleaning dependencies

Using maven  dependency:analyze
Cleaning dependencies
Cleaning and adding dependencies

Getting rid of obsolete dependencies to organisaatio-widget (dunno why
it was there in the first place...).