message: Use stringTo function from NAS2D
diff: @@ -458,7 +458,7 @@ void MapViewState::readStructures(Xml::XmlElement* element)
  {
  for (const auto& string : NAS2D::split(robotsAttribute->value(), ','))
  {
  - const int robotId = std::stoi(string);
  + const auto robotId = NAS2D::stringTo<int>(string);
  for (auto* robot : mRobotPool.robots())
  {
  if (robot->id() == robotId)
  