Add setting to skip saving the string-response in the logging when using WithBody(Func...) (#828)

* Add extra unit-test for Response WithBody (dynamic code)

* DoNotSaveDynamicResponseInLogEntry

* update SettingsModel

* fix

* .

src/WireMock.Net/Settings/WireMockServerSettings.cs

@@ -252,6 +252,12 @@ namespace WireMock.Settings
         [PublicAPI]
         public bool? SaveUnmatchedRequests { get; set; }
 
+        /// <summary>
+        /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to false).
+        /// </summary>
+        [PublicAPI]
+        public bool? DoNotSaveDynamicResponseInLogEntry { get; set; }
+
         /// <summary>
         /// Custom matcher mappings for static mappings
         /// </summary>