message: add --osp:deviceparam <name> <val>
diff: @@ -118,6 +118,15 @@ namespace ospray {
  postStatusMsg("<n> argument required for --osp:setaffinity!");
  removeArgs(ac,av,i,1);
  }
  + } else if (parm == "--osp:deviceparam") {
  + if (i + 2 < ac) {
  + device->setParam(av[i + 1], std::string(av[i + 2]));
  + removeArgs(ac, av, i, 3);
  + } else {
  + postStatusMsg("<param name> <param val> arguments required for "
  + "--osp:deviceparam!");
  + removeArgs(ac,av,i,1);
  + }
  } else {
  ++i;
  }
  