returns a unique member 's name for storage in a zipfile . the project 's base name is prepended followed by an underscore '_' . the extension is appended . used by `` argo.tee '' . concode_field_sep String uniqueName concode_elem_sep Project project concode_field_sep void makeUniqueName concode_elem_sep String getType concode_elem_sep String toString concode_elem_sep void remove concode_elem_sep String getUniqueDiagramName concode_elem_sep String getZipFileExtension