Bug 210496 Add hasStyle property in reportItemModel extension point
When chart gets reportItem's properties by extending ReportItem, style properties are null. Hence, model needs to add hasStyle property in reportItemModel extension point
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/extension/ReportItemExtensionTest.java
private ExtendedItemHandle insertExtendedItem( String name,
			String extensionName ) throws Exception
	{
		sessionHandle = new DesignEngine( new DesignConfig( ) )
				.newSessionHandle( (ULocale) null );
		designHandle = sessionHandle.createDesign( );
		ExtendedItemHandle itemHandle = designHandle.getElementFactory( )
				.newExtendedItem( name, extensionName );
		designHandle.getBody( ).add( itemHandle );
		return itemHandle;
	}
	/**
	 * Tests lazy initializing extension.
	 * 
	 * @throws Exception
	 *             if any exception.
	 */
	public void testLoadExtendedElement( ) throws Exception
	{
		
		openDesign( fileName );
		ExtendedItemHandle extendedHandle = (ExtendedItemHandle) designHandle
				.findElement( "right extended item" ); 
		assertNotNull( extendedHandle );
		assertEquals( "bar", extendedHandle.getProperty( "type" ) );  
		designHandle.close( );
		
		openDesign( fileName );
		extendedHandle = (ExtendedItemHandle) designHandle
				.findElement( "right extended item" );