message: added get_window_position (if we have set_window_position we need to have it as well)
diff: @@ -762,6 +762,14 @@ pub fn set_window_position<P: Into<winit::dpi::Position>>(
  Ok(())
  }
  +/// Gets the window position.
  +pub fn get_window_position(context: &Context) -> GameResult<winit::dpi::PhysicalPosition<i32>> {
  + match context.gfx_context.window.window().outer_position() {
  + Ok(position) => Ok(position),
  + Err(e) => Err(GameError::WindowError(e.to_string())),
  + }
  +}
  +
  /// Returns a reference to the Glutin window.
  /// Ideally you should not need to use this because ggez
  /// would provide all the functions you need without having
  