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.engine/src/org/eclipse/birt/chart/model/attribute/Marker.java
/***********************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/
package org.eclipse.birt.chart.model.attribute;
import org.eclipse.emf.ecore.EObject;
/**
 * <!-- begin-user-doc --> A representation of the model object '<em><b>Marker</b></em>'. <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * 
 * 			This type represents the value marker for a line or scatter series.
 * 			
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.birt.chart.model.attribute.Marker#getType <em>Type</em>}</li>
 *   <li>{@link org.eclipse.birt.chart.model.attribute.Marker#getSize <em>Size</em>}</li>