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/PeerExtensionTest.java
{
		openDesign( FILE_NAME_7 );
		
		DesignElementHandle extendedItem = designHandle
				.findElement( "testTable" ); 
		ElementRefValue value = (ElementRefValue) extendedItem.getElement( )
				.getProperty( design, "cube" ); 
		assertEquals( "testCube", value.getName( ) ); 
		assertFalse( value.isResolved( ) );
		
		CubeHandle cube = designHandle.getElementFactory( ).newTabularCube(
				"testCube" ); 
		designHandle.getCubes( ).add( cube );
		value = (ElementRefValue) extendedItem.getElement( ).getProperty(
				design, "cube" ); 
		assertEquals( "testCube", value.getName( ) ); 
		assertEquals( cube.getElement( ), value.getTargetElement( ) );
		assertTrue( value.isResolved( ) );
	}
	/**
	 * Test client reference in extended item.
	 * 
	 * @throws Exception
	 */
	public void testBackRef( ) throws Exception
	{
		openDesign( "PeerExtensionTest_8.xml" );
		DesignElementHandle extendedItem = designHandle
				.findElement( "testTable" );
		DesignElementHandle cubeHandle = designHandle.getCubes( ).get( 0 );