message: add check for unconsumed parameters in ISPCDevice
  called by all objects after their commits
diff: @@ -397,6 +397,7 @@ namespace ospray {
  {
  ManagedObject *object = (ManagedObject *)_object;
  object->commit();
  + object->checkUnconsumed();
  }
  void ISPCDevice::removeParam(OSPObject _object, const char *name)
  