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
assert !isBuilt;
		supportsUserProperties = flag;
	}
	/**
	 * Indicates whether this element is an abstract element type created as
	 * part of the element type system. Such elements are normally not visible
	 * to users -- they are used by the implementation to simplify the
	 * description of user-visible elements.
	 * 
	 * @return True if this is an invisible abstract element, false if this is a
	 *         concrete, user-visible element.
	 */
	public boolean isAbstract( )
	{
		return abstractElement;
	}
	/**
	 * Gets the predefined style for this element.
	 * 
	 * @return The predefined style .
	 */
	public String getSelector( )
	{
		return selector;
	}
	/**
	 * Gets the parent element. This is the element that this element extends.
	 * 
	 * @return Returns the parent element.
	 */