Update runtime logic

在初始化失败的时候，销毁YooAssets会报异常。

Assets/YooAsset/Runtime/PatchSystem/PlayMode/EditorSimulateModeImpl.cs

@@ -78,6 +78,10 @@ namespace YooAsset
 		{
 			return _simulatePatchManifest.IsIncludeBundleFile(fileName);
 		}
+		bool IBundleServices.IsServicesValid()
+		{
+			return _simulatePatchManifest != null;
+		}
 		#endregion
 	}
 }