[LMS-2253] Ability to extend vocabularies by 'ad hoc' terms

...msx/cisd/openbis/dss/client/api/gui/AbstractSwingGUI.java

...d/openbis/dss/client/api/gui/AddVocabularyTermDialog.java

...sd/openbis/dss/client/api/gui/DataSetPropertiesPanel.java

.../openbis/dss/client/api/gui/DataSetUploadClientModel.java

...nbis/dss/client/api/gui/VocabularyTermsComboBoxPanel.java

...server/graph/TabularDataGraphCollectionConfiguration.java

...sd/openbis/dss/generic/shared/utils/CodeAndLabelUtil.java

...sd/openbis/dss/generic/shared/utils/DatasetFileLines.java

...sd/openbis/dss/generic/shared/utils/CodeAndLabelTest.java

...enbis/generic/client/web/client/ICommonClientService.java

.../generic/client/web/client/ICommonClientServiceAsync.java

...d/openbis/generic/client/web/client/application/Dict.java

...t/application/ui/field/VocabularyTermSelectionWidget.java

...client/web/client/application/ui/widget/DropDownList.java

...penbis/generic/client/web/server/CommonClientService.java

...ch/systemsx/cisd/openbis/generic/server/CommonServer.java

...temsx/cisd/openbis/generic/server/CommonServerLogger.java

...eric/server/api/v1/GeneralInformationChangingService.java

...erver/api/v1/GeneralInformationChangingServiceLogger.java

...nbis/generic/server/api/v1/GeneralInformationService.java