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 AGGREGATION_FUNCTION_IS_TOP_N_PERCENT = "is-top-n-percent"; 
	public static final String AGGREGATION_FUNCTION_IS_BOTTOM_N_PERCENT = "is-bottom-n-percent"; 	
	public static final String AGGREGATION_FUNCTION_PERCENT_RANK = "percent-rank"; 
	public static final String AGGREGATION_FUNCTION_PERCENTILE = "percentile"; 
	public static final String AGGREGATION_FUNCTION_TOP_QUARTILE = "quartile"; 
	public static final String AGGREGATION_FUNCTION_PERCENT_SUM = "percent-sum"; 
	public static final String AGGREGATION_FUNCTION_RANK = "rank"; 
	/**
	 * measure Function -- measure function type.
	 */
	public static final String CHOICE_MEASURE_FUNCTION = "measureFunction"; 
	public static final String MEASURE_FUNCTION_SUM = AGGREGATION_FUNCTION_SUM;
	public static final String MEASURE_FUNCTION_COUNT = AGGREGATION_FUNCTION_COUNT;
	public static final String MEASURE_FUNCTION_MIN = AGGREGATION_FUNCTION_MIN;
	public static final String MEASURE_FUNCTION_MAX = AGGREGATION_FUNCTION_MAX;
	public static final String MEASURE_FUNCTION_AVERAGE = AGGREGATION_FUNCTION_AVERAGE;
	public static final String MEASURE_FUNCTION_WEIGHTEDAVG = AGGREGATION_FUNCTION_WEIGHTEDAVG;
	public static final String MEASURE_FUNCTION_STDDEV = AGGREGATION_FUNCTION_STDDEV;
	public static final String MEASURE_FUNCTION_FIRST = AGGREGATION_FUNCTION_FIRST;
	public static final String MEASURE_FUNCTION_LAST = AGGREGATION_FUNCTION_LAST;
	public static final String MEASURE_FUNCTION_MODE = AGGREGATION_FUNCTION_MODE;
	public static final String MEASURE_FUNCTION_MOVINGAVE = AGGREGATION_FUNCTION_MOVINGAVE;
	public static final String MEASURE_FUNCTION_MEDIAN = AGGREGATION_FUNCTION_MOVINGAVE;
	public static final String MEASURE_FUNCTION_VARIANCE = AGGREGATION_FUNCTION_VARIANCE;
	public static final String MEASURE_FUNCTION_RUNNINGSUM = AGGREGATION_FUNCTION_RUNNINGSUM;
	public static final String MEASURE_FUNCTION_IRR = AGGREGATION_FUNCTION_IRR;
	public static final String MEASURE_FUNCTION_MIRR = AGGREGATION_FUNCTION_IRR;
	public static final String MEASURE_FUNCTION_NPV = AGGREGATION_FUNCTION_NPV;
	public static final String MEASURE_FUNCTION_RUNNINGNPV = AGGREGATION_FUNCTION_RUNNINGNPV;
	public static final String MEASURE_FUNCTION_COUNTDISTINCT = AGGREGATION_FUNCTION_COUNTDISTINCT;