[LMS-1676] improved Parents column for sample browsers;

...client/application/renderer/InternalLinkCellRenderer.java

...s/generic/client/web/client/application/ui/CodesArea.java

...i/columns/specific/sample/AbstractParentSampleColDef.java

...umns/specific/sample/ParentGeneratedFromSampleColDef.java

...t/web/client/application/ui/sample/SampleBrowserGrid.java

...ystemsx/cisd/openbis/generic/shared/basic/dto/Sample.java

.../web/client/application/sample/GenericSampleEditForm.java

...nt/web/client/application/sample/GenericSampleViewer.java

...ric/client/web/client/application/sample/SamplesArea.java

...msx/cisd/openbis/plugin/generic/server/GenericServer.java