Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/composites/MarkerIconDialog.java
if ( iconPalette != null )
		{
			this.iconPalette = (Palette) EcoreUtil.copy( iconPalette );
			this.iconPalette.eAdapters( ).addAll( iconPalette.eAdapters( ) );
		}
		shell = new Shell( parent, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL );
		shell.setLayout( new GridLayout( ) );
		shell.setSize( 600, 420 ); 
		UIHelper.centerOnScreen( shell );
		createContents( shell );
		shell.setText( Messages.getString( "MarkerIconDialog.Title.MarkerIconSelector" ) ); 
		shell.layout( );
		shell.open( );
		while ( !shell.isDisposed( ) )
		{
			if ( !shell.getDisplay( ).readAndDispatch( ) )
			{
				shell.getDisplay( ).sleep( );
			}
		}
	}
	/**
	 * Place dialog composite.
	 * 
	 * @param shell
	 *            shell of MarkerIconDialog
	 */
	protected void createContents( Shell shell )
	{
		Composite cmpContent = new Composite( shell, SWT.NONE );