message: Add optional attribute "specialuse", currently ignored.
diff: @@ -3655,6 +3655,7 @@ void VulkanHppGenerator::readExtension(tinyxml2::XMLElement const* element)
  { "provisional",{} },
  { "requires",{} },
  { "requiresCore",{} },
  + { "specialuse", {} },
  { "type",{ "device", "instance" } }
  });
  std::vector<tinyxml2::XMLElement const*> children = getChildElements(element);
  