Bug 201368 Support "Not In" operator in filter list
Description: After we support "IN" filter we should also support the "Not In" filter. Data part has already support the "Not In" filter, so hope model can support that operator in the filter operator list. Regards!
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/DesignChoiceConstants.java
public static final String ACTION_FORMAT_TYPE_HTML = "html"; 
	public static final String ACTION_FORMAT_TYPE_PDF = "pdf"; 
	
	public static final String CHOICE_TEXT_CONTENT_TYPE = "textContentType"; 
	public static final String TEXT_CONTENT_TYPE_AUTO = "auto"; 
	public static final String TEXT_CONTENT_TYPE_PLAIN = "plain"; 
	public static final String TEXT_CONTENT_TYPE_HTML = "html"; 
	public static final String TEXT_CONTENT_TYPE_RTF = "rtf"; 
	
	public static final String CHOICE_TEXT_DATA_CONTENT_TYPE = "textDataContentType"; 
	public static final String TEXT_DATA_CONTENT_TYPE_AUTO = "auto"; 
	public static final String TEXT_DATA_CONTENT_TYPE_PLAIN = "plain"; 
	public static final String TEXT_DATA_CONTENT_TYPE_HTML = "html"; 
	public static final String TEXT_DATA_CONTENT_TYPE_RTF = "rtf"; 
	
	public static final String CHOICE_OPRHANS = "orphans"; 
	public static final String ORPHANS_INHERIT = "inherit"; 
	
	public static final String CHOICE_WIDOWS = "widows"; 
	public static final String WIDOWS_INHERIT = "inherit"; 
	/**
	 * FormatType -- The target output format. The first constant is the name of
	 * FormatType choice. The followed constants are valid choice values of
	 * FormatType.
	 */
	public static final String CHOICE_FORMAT_TYPE = "formatType"; 
	public static final String FORMAT_TYPE_ALL = "all"; 
	public static final String FORMAT_TYPE_VIEWER = "viewer"; 
	public static final String FORMAT_TYPE_EMAIL = "email"; 
	public static final String FORMAT_TYPE_PRINT = "print";