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/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
}
	/**
	 * Builds cached meta-data for properties defined on this element.
	 * 
	 * @throws MetaDataException
	 *             if any exception occurs during build.
	 */
	protected void buildProperties( ) throws MetaDataException
	{
		
		
		buildLocalProperties( );
		buildStyleProperties( );
		buildCachedPropertyDefns( );
	}
	/**
	 * Builds cached meta-data for properties defined on this element.
	 * 
	 * @throws MetaDataException
	 *             if any exception occurs during build.
	 */
	protected void buildLocalProperties( ) throws MetaDataException
	{
		boolean isStyle = MetaDataConstants.STYLE_NAME.equals( name );
		Iterator iter = properties.values( ).iterator( );
		while ( iter.hasNext( ) )
		{
			ElementPropertyDefn prop = (ElementPropertyDefn) iter.next( );