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
{
				( (CheckboxTableViewer) bindingTable ).setChecked( getSelectColumnHandle( ),
						true );
			}
		}
	}
	protected void addBinding( ComputedColumn column )
	{
		try
		{
			DEUtil.addColumn( DEUtil.getBindingHolder( inputElement ),
					column,
					false );
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
	}
	protected List getBindingList( DesignElementHandle inputElement )
	{
		return DEUtil.getVisiableColumnBindingsList( inputElement );
	}
	private int canChangeDataSet( String newName )
	{
		String currentDataSetName = getDataSetName( );
		if ( currentDataSetName == null
				&& !inputElement.columnBindingsIterator( ).hasNext( ) )
		{
			return 0;