fix #7246 consitent implementation of LazySelect reloading of modified entity beans:
ReloadableSelect interface for select fields which support reloading the selected value from the persitent storage
EntitySupport interface to ship around equality problems of enitites which have modified data
Related issues
bug #7246: ToOneRelatedEntityReloader.valueChange() not triggered after editing bean chosen in ToOneRelatedEntityCombobox or ToManyRelatedEntitiesComboboxSelect
fix #7246 consitent implementation of LazySelect reloading of modified entity beans: