Bug 190207 Integrate Aggregation builder with charts
Charts should be able to use aggregates in their databinding definition. The UI is missing the "Add Aggregation..." button in the chart databinding dialog.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
GridData gd = new GridData( GridData.FILL_HORIZONTAL );
			gd.horizontalSpan = 2;
			warnLabel.setLayoutData( gd );
			label = new Label( composite, SWT.NONE );
			label.setText( LABEL_COLUMN_BINDINGS );
			label.setLayoutData( new GridData( GridData.BEGINNING ) );
			combo = new CCombo( composite, SWT.READ_ONLY | SWT.BORDER );
			combo.setBackground( PlatformUI.getWorkbench( )
					.getDisplay( )
					.getSystemColor( SWT.COLOR_LIST_BACKGROUND ) );
			String[] dataSets = ChoiceSetFactory.getDataSets( );
			String[] newList = new String[dataSets.length + 1];
			newList[0] = NullChoice;
			System.arraycopy( dataSets, 0, newList, 1, dataSets.length );
			combo.setItems( newList );
			String dataSetName = getDataSetName( );
			combo.deselectAll( );
			if ( dataSetName != null )
			{
				combo.setText( dataSetName );
			}
			else
			{
				combo.select( 0 );
			}
			combo.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
			gd = new GridData( );
			gd.widthHint = 250;
			combo.setLayoutData( gd );
			combo.addSelectionListener( new SelectionAdapter( ) {