Jake Oettinger wants to be one of the best goaltenders in the world, and he doesn’t care who knows it. But first, the Dallas Stars’ franchise cornerstone needs to be the best goaltender from his country. It’s a tall order when the competition includes U.S.-born standouts like Jeremy Swayman, Thatcher Demko and Connor Hellebuyck. But the rewards could be considerable for both Otter and the…