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/figures/TextFlow.java
{
	/**
	 * The multiple of this is the actual drawing line width.
	 */
	static int LINE_FACTOR = 24;
	/**
	 * Since the <b>ELLIPSIS </b> field in org.eclipse.draw2d.text.TextFlow is
	 * not accessible outside its package, we use this to substitute it.
	 */
	static String ELLIPSIS = "...";