Register new type converter in twig.

ConverterRegistration.java

  @Override
  protected CombinedConverter createTypeConverter() {
    CombinedConverter converter = new CombinedConverter();
    converter.append(new PrimitiveConverter());
    converter.append(new CollectionConverter(converter));

    converter.append(new CityToString());
    converter.append(new StringToCity());

    converter.append(new StreetToString());
    converter.append(new StringToStreet());

    converter.append(new PeriodToString());
    converter.append(new StringToPeriod());

    converter.append(new DateTimeToDate());
    converter.append(new DateToDateTime());

    converter.append(new TelephoneNumbersToString());
    converter.append(new StringToTelephoneNumbers());

    converter.append(new ActionTypeToStringConverter());
    converter.append(new StringToActionTypeConverter());

    converter.append(new MacAddressToString());
    converter.append(new StringToMacAddress());

    converter.append(new DeviceTypeToTypeEnum());
    converter.append(new TypeEnumToDeviceType());

    EngineConverters.registerAll(converter);
    CoreConverters.registerAll(converter);
    MapConverters.registerAll(converter);
    return converter;
  }