Bug 179674 Support time dimension in model
When define time dimension in model, the "itTime" property will be set. However this is not enough. We also need to know to what precision the time value should be evaluated, say, year, month, day, etc. Model needs to be enhanced to support such requirement.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
if ( propDefn.getTypeCode( ) == IPropertyType.SCRIPT_TYPE )
			cdata = true;
		if ( withoutName )
			writeEntry( tag, null, xml, cdata );
		else
			writeEntry( tag, memberName, xml, cdata );
	}
	/**
	 * Writes the resource key entry.
	 * 
	 * @param tagName
	 *            the tag name to write
	 * @param name
	 *            the property name of resource
	 * @param key
	 *            the resource key value
	 * @param xml
	 *            the resource value
	 * @param cdata
	 *            whether the resource value should be written as CDATA.
	 */
	protected void writeResouceKey( String tagName, String name, String key,
			String xml, boolean cdata )
	{
		
		if ( key == null && xml == null )
			return;
		writer.startElement( tagName );
		writer.attribute( DesignSchemaConstants.NAME_ATTRIB, name );
		writer.attribute( DesignSchemaConstants.KEY_ATTRIB, key );