[LMS-2036] display links as entity identifiers; handle missing entities

...eric/client/web/client/application/ui/TypedTableGrid.java

...ient/application/ui/TypedTableGridColumnDefinitionUI.java

...siness/bo/managed_property/EntityInformationProvider.java

...h/systemsx/cisd/openbis/generic/shared/ResourceNames.java

...isd/openbis/generic/shared/basic/dto/EntityTableCell.java

.../shared/managed_property/EntityLinkElementTranslator.java

...c/shared/managed_property/IEntityInformationProvider.java

...generic/shared/managed_property/ScriptUtilityFactory.java

...ared/managed_property/SimpleTableModelBuilderAdaptor.java