message: Print builder errors by default.
diff: @@ -29,6 +29,14 @@ namespace wire {
  class Device;
  + void PrintBuilderError(nxtBuilderErrorStatus status, const char* message, nxtCallbackUserdata, nxtCallbackUserdata) {
  + if (status == NXT_BUILDER_ERROR_STATUS_SUCCESS || status == NXT_BUILDER_ERROR_STATUS_UNKNOWN) {
  + return;
  + }
  +
  + std::cout << "Got a builder error " << status << ": " << message << std::endl;
  + }
  +
  struct BuilderCallbackData {
  void Call(nxtBuilderErrorStatus status, const char* message) {
  if (canCall && callback != nullptr) {
  @@ -37,7 +45,8 @@ namespace wire {
  }
  }
  - nxtBuilderErrorCallback callback = nullptr;
  + //* For help with development, prints all builder errors by default.
  + nxtBuilderErrorCallback callback = PrintBuilderError;
  nxtCallbackUserdata userdata1 = 0;
  nxtCallbackUserdata userdata2 = 0;
  bool canCall = true;
  