Set validity date on ChildStops in multi model stop places

[assadriaz]

1. update stop_place set from_date =sub.fromDate, to_date=sub.toDate from (select s.id as sid,p.from_date as fromDate,p.to_date as toDate from stop_place s join stop_place p on s.parent_site_ref=p.netex_id and cast(s.parent_site_ref_version as integer )=p.version) as sub where stop_place.id=sub.sid;
2. Update StopPlaceVersionedSaverService to set validity on child stops
3. Update/Write tests