serialize enums in model data

VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory/SimulatorFactory.cs

@@ -205,10 +205,12 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl.SimulatorFactory
 
 			// TODO: MQ 20200410 - Remove for official release!
 			if (SerializeVectoRunData) {
-				File.WriteAllText(
+				var jsonSerializerSettings = new JsonSerializerSettings();
+				jsonSerializerSettings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
+                File.WriteAllText(
 					Path.Combine(
 						(ReportWriter as FileOutputWriter)?.BasePath ?? "", $"{data.JobName}_{data.Cycle.Name}{data.ModFileSuffix}.json"),
-					JsonConvert.SerializeObject(data, Formatting.Indented));
+					JsonConvert.SerializeObject(data, Formatting.Indented, jsonSerializerSettings));
 			}
 			data.JobNumber = JobNumber;
 			data.RunNumber = current;