ref #8162 move OriginalSourceXXX to reference package
revert changes in selection dialogs for enums
selection dialogs does not use CdmFilteredItemsSelectionDialog anymore
SpecimenOrObservationTypeSelectionDialog : new dialog which allows user to choose from known SpecimenOrObservationTypes AbstractFilteredCdmResourceSelectionDialog: added check to make sure that wizard does return a non-null entity