Bug 211703 Support muti-view on report item.
As title described.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/ICrosstabReportItemConstants.java
/**
	 * Name of the property which given the caption output.
	 */
	String CAPTION_PROP = "caption"; 
	/**
	 * Name of the property that gives the caption key for output.
	 */
	String CAPTION_ID_PROP = "captionID"; 
	/**
	 * Name of the property that indicates whether the measure is horizontal
	 * level or vertical level.
	 */
	String MEASURE_DIRECTION_PROP = "measureDirection"; 
	/**
	 * Name of the property that gives the page layout.
	 */
	String PAGE_LAYOUT_PROP = "pageLayout"; 
	/**
	 * Name of the property that specifies if repeat the row header for each
	 * page.
	 */
	String REPEAT_ROW_HEADER_PROP = "repeatRowHeader"; 
	/**
	 * Name of the property that specifies if repeat the column header for each
	 * page.
	 */
	String REPEAT_COLUMN_HEADER_PROP = "repeatColumnHeader"; 
	/**
	 * Name of the property that specifies if hide measure header.
	 */