Add backwards compatible EnumUtils.TryToString call

Author: JamesNK

Src/Newtonsoft.Json/Utilities/EnumUtils.cs

@@ -117,6 +117,13 @@ public static IList<T> GetFlagsValues<T>(T value) where T : struct
             return selectedFlagsValues;
         }
 
+        // Used by Newtonsoft.Json.Schema
+        private static CamelCaseNamingStrategy _camelCaseNamingStrategy = new CamelCaseNamingStrategy();
+        public static bool TryToString(Type enumType, object value, bool camelCase, out string name)
+        {
+            return TryToString(enumType, value, camelCase ? _camelCaseNamingStrategy : null, out name);
+        }
+
         public static bool TryToString(Type enumType, object value, NamingStrategy namingStrategy, out string name)
         {
             EnumInfo enumInfo = ValuesAndNamesPerEnum.Get(new StructMultiKey<Type, NamingStrategy>(enumType, namingStrategy));