Add c_repetition_interval_deactivated constant

ttcn/IVIM/LibItsIvim_TypesAndValues.ttcn

@@ -26,6 +26,7 @@ module LibItsIvim_TypesAndValues {
     
     group ivimConstants {
         
+        const TimestampIts c_repetition_interval_deactivated := 0;
         const TimestampIts c_duration_2sec := 2;
         const TimestampIts c_duration_4sec := 4;
         const TimestampIts c_duration_6sec := 6;