LMS-749 bugfix: searching and showing sample properties did not work correctly

...lient/web/client/application/ui/data/CriterionWidget.java

...plication/ui/data/DataSetSearchFieldsSelectionWidget.java

...web/client/application/ui/data/DataSetSearchHitModel.java

...ation/ui/experiment/columns/PropertyExperimentColDef.java

...eb/client/application/ui/grid/AbstractPropertyColDef.java

...t/application/ui/sample/columns/PropertySampleColDef.java

...nbis/generic/shared/basic/dto/DataSetSearchCriterion.java