message: Add Transform to list of printable node types
diff: @@ -39,7 +39,9 @@ namespace ospray::sg {
  std::cout << " ";
  std::cout << node.name() << " : " << node.subType();
  + // A couple of usings to make subType strings match types
  using string = std::string;
  + using Transform = affine3f;
  PRINT_AS(node, string);
  PRINT_AS(node, bool);
  PRINT_AS(node, float);
  @@ -56,7 +58,7 @@ namespace ospray::sg {
  PRINT_AS(node, range1f);
  PRINT_AS(node, rgb);
  PRINT_AS(node, rgba);
  - PRINT_AS(node, affine3f);
  + PRINT_AS(node, Transform);
  std::cout << std::endl;
  return true;
  