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
* @param yoff
	 */
	public void paintTo( Graphics g, int xoff, int yoff )
	{
		TextFragmentBox frag;
		List fragments = this.getFragments( );
		assert this.getFont( ).getFontData( ).length > 0;
		/**
		 * Calculates the actual drawing line width according to the Font size.
		 */
		int lineWidth = this.getFont( ).getFontData( )[0].getHeight( )
				/ LINE_FACTOR + 1;
		/**
		 * Get the total fragments height first
		 */
		int totalHeight = 0;
		for ( int i = 0; i < fragments.size( ); i++ )
		{
			totalHeight += ((TextFragmentBox)fragments.get( i )).getAscent( ) + ((TextFragmentBox)fragments.get( i )).getDescent( );
		}
		for ( int i = 0; i < fragments.size( ); i++ )
		{
			frag = (TextFragmentBox) fragments.get( i );
			
			String draw = null;
			try
			{
				/**
				 * Uses stored <b>TRUNCATED </b> Field object to reflect the
				 * relevant value.