Scenario : stay on current state for a number of times (#495)

* state

* xml comment

src/WireMock.Net.Abstractions/Admin/Scenarios/ScenarioStateModel.cs

@@ -24,5 +24,10 @@
         /// Gets or sets a value indicating whether this <see cref="ScenarioStateModel"/> is finished.
         /// </summary>
         public bool Finished { get; set; }
+
+        /// <summary>
+        /// Gets or sets the state counter.
+        /// </summary>
+        public int Counter { get; set; }
     }
 }