message: Add Message handlers so OSPRAY_DEBUG matches --osp:debug behavior
diff: @@ -125,6 +125,8 @@ namespace ospray {
  if (debugMode) {
  logLevel = 2;
  numThreads = 1;
  + installStatusMsgFunc(*this, std::cout);
  + installErrorMsgFunc(*this, std::cerr);
  }
  threadAffinity = AUTO_DETECT;
  