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
* Tests the parser for the extension and the TestPeer--implementation of
	 * IPeer.
	 */
	public void testExtensionMeta( )
	{
		MetaDataDictionary dd = MetaDataDictionary.getInstance( );
		assertTrue( dd.getExtensions( ).size( ) >= 2 );
		ExtensionElementDefn extDefn = (ExtensionElementDefn) dd
				.getExtension( TESTING_BOX_NAME );
		assertNotNull( extDefn );
		assertEquals( "TestingBox", extDefn.getDisplayName( ) ); 
		assertNull( extDefn.getDisplayNameKey( ) );
		assertEquals( TESTING_BOX_NAME, extDefn.getName( ) );
		assertEquals( MetaDataConstants.REQUIRED_NAME, extDefn.getNameOption( ) );
		assertEquals( true, extDefn.allowsUserProperties( ) );
		assertEquals( TESTING_BOX_NAME, extDefn.getName( ) );
		assertEquals( extDefn.getXmlName( ), ( (ElementDefn) dd
				.getElement( ReportDesignConstants.EXTENDED_ITEM ) )
				.getXmlName( ) );
		
		PropertyDefn propDefn = (PropertyDefn) extDefn
				.getProperty( POINTS_PROP_NAME );
		assertEquals( PropertyType.LIST_TYPE, propDefn.getTypeCode( ) );
		assertEquals( PropertyType.FLOAT_TYPE, propDefn.getSubTypeCode( ) );
		
		assertTrue( extDefn.isContainer( ) );
		assertEquals( 0, extDefn.getSlotCount( ) );
		
		PropertyDefn slotPropertyDefn = (PropertyDefn) extDefn
				.getProperty( HEADER_PROP );