handle engine retarder in factory and when building powertrain

VectoCore/VectoCore/InputData/Reader/DataObjectAdapter/AbstractSimulationDataAdapter.cs

@@ -95,12 +95,13 @@ namespace TUGraz.VectoCore.InputData.Reader.DataObjectAdapter
 						break;
 					case RetarderType.None:
 					case RetarderType.LossesIncludedInTransmission:
+					case RetarderType.EngineRetarder:
 						retarder.Ratio = 1;
 						break;
 					default:
 						// ReSharper disable once NotResolvedInText
 						// ReSharper disable once LocalizableElement
-						throw new ArgumentOutOfRangeException("retarder.Type", "RetarderType unknown");
+						throw new ArgumentOutOfRangeException("retarder", retarder.Type, "RetarderType unknown");
 				}
 
 				if (!retarder.Type.IsDedicatedComponent()) {

VectoCore/VectoCore/Utils/ProviderExtensions.cs

@@ -120,11 +120,13 @@ namespace TUGraz.VectoCore.Utils
 				case RetarderType.TransmissionInputRetarder:
 					return prev.AddComponent(gearbox).AddComponent(new Retarder(container, data.LossMap, data.Ratio));
 				case RetarderType.None:
-					return prev.AddComponent(new DummyRetarder(container)).AddComponent(gearbox);
 				case RetarderType.LossesIncludedInTransmission:
+				case RetarderType.EngineRetarder:
 					return prev.AddComponent(new DummyRetarder(container)).AddComponent(gearbox);
 				default:
-					throw new ArgumentOutOfRangeException(data.Type.ToString());
+					// ReSharper disable once NotResolvedInText
+					// ReSharper disable once LocalizableElement
+					throw new ArgumentOutOfRangeException("retarderdata.Type", data.Type.ToString(), "Retardertype unknown");
 			}
 		}
 	}

VectoCore/VectoCoreTest/Models/Simulation/DeclarationSimulationFactoryTest.cs

-using System.Collections.Generic;
-using System.IO;
+using System.IO;
 using System.Linq;
 using System.Xml;
 using NUnit.Framework;