Bug 209128 BIRT Cross tab Model Change - Support for filter on measures
TO support filter condition on cross tab measure, Model changes are needed to support filter condition list on cross tab report item.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/MeasureViewHandle.java
* Gets the aggregations property handle of this measure view.
	 * 
	 * @return the aggregations property handle
	 */
	PropertyHandle getAggregationsProperty( )
	{
		return handle.getPropertyHandle( AGGREGATIONS_PROP );
	}
	/**
	 * Gets the detail slot handle of this measure view.
	 * 
	 * @return the detail slot handle
	 */
	PropertyHandle getDetailProperty( )
	{
		return handle.getPropertyHandle( DETAIL_PROP );
	}
	/**
	 * Gets the header slot handle of this measure view.
	 * 
	 * @return the header slot handle
	 */
	PropertyHandle getHeaderProperty( )
	{
		return handle.getPropertyHandle( HEADER_PROP );
	}
	/**
	 * Gets the detail cell of this measure view.
	 * 
	 * @return the detail cell of this measure view if set, otherwise null