message: Add "type" as an optional attribute for enums.
diff: @@ -11881,7 +11881,8 @@ void VulkanHppGenerator::readEnumConstant( tinyxml2::XMLElement const * element
  {
  int line = element->GetLineNum();
  std::map<std::string, std::string> attributes = getAttributes( element );
  - checkAttributes( line, attributes, { { "name", {} } }, { { "alias", {} }, { "comment", {} }, { "value", {} } } );
  + checkAttributes(
  + line, attributes, { { "name", {} } }, { { "alias", {} }, { "comment", {} }, { "type", {} }, { "value", {} } } );
  checkElements( line, getChildElements( element ), {} );
  std::string alias, name, value;
  