Bug 182062 Define and provide Date/Time format value
DateTime type has been supported in BIRT. Now, there's a proposal on support Date/Time type in BIRT Report Designer. In order to enable end user setting the format of Date/Time type, please define and provide format value for both Date and Time.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/AbstractPropertyState.java
* 
	 * @param propName
	 *            property name
	 * @param value
	 *            value string from the XML file
	 */
	protected void setProperty( String propName, Object value )
	{
		assert propName != null;
		if ( propName.equalsIgnoreCase( IDesignElementModel.NAME_PROP )
				|| propName.equalsIgnoreCase( IDesignElementModel.EXTENDS_PROP ) )
		{
			DesignParserException e = new DesignParserException(
					DesignParserException.DESIGN_EXCEPTION_INVALID_PROPERTY_SYNTAX );
			handler.getErrorHandler( ).semanticError( e );
			valid = false;
			return;
		}
		
		if ( element.isVirtualElement( ) )
		{
			if ( element instanceof Cell )
			{
				if ( ICellModel.COL_SPAN_PROP.equalsIgnoreCase( propName )
						|| ICellModel.ROW_SPAN_PROP.equalsIgnoreCase( propName )
						|| ICellModel.DROP_PROP.equalsIgnoreCase( propName )
						|| ICellModel.COLUMN_PROP.equalsIgnoreCase( propName ) )
				{
					PropertyValueException e = new PropertyValueException(
							element,