Bug 190058 icon for aggregation type data items.
For aggregation type data items in cross tabs, we should show the icon instead of the sigma symbol. I am attaching the icon to replace it
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/DataEditPart.java
if ( dialog.open( ) == Dialog.OK )
		{
			try
			{
				if ( dialog.getBindingColumn( ) != null )
				{
					handle.setResultSetColumn( dialog.getBindingColumn( )
							.getName( ) );
				}
				handle.getModuleHandle( ).getCommandStack( ).commit( );
			}
			catch ( SemanticException e )
			{
				ExceptionHandler.handle( e );
				handle.getModuleHandle( ).getCommandStack( ).rollbackAll( );
			}
			refreshVisuals( );
		}
		else
		{
			handle.getModuleHandle( ).getCommandStack( ).rollbackAll( );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.internal.ui.editors.schematic.editparts.ReportElementEditPart#refreshFigure()
	 */
	public void refreshFigure( )
	{