Merge pull request #57 from hfloyd/feature/fix-Level-value

Adding the setting of 'Level' in the ValueConverter

src/TreeMenu/ValueConverters/SimpleTreeMenuConverter.cs

@@ -105,7 +105,8 @@ private IEnumerable<SimpleTreeItem> convertToItem(List<JObject> objects, Propert
                 var item = new SimpleTreeItem()
                 {
                     Item = element,
-                    Name =sourceObject["name"]?.ToObject<string>()
+                    Name =sourceObject["name"]?.ToObject<string>(),
+                    Level = (int)sourceObject["level"]?.ToObject<int>()
                 };
 
                 var children = sourceObject["items"]?.ToObject<List<JObject>>();