By Andy JACOBSOHN / AFP The little aircraft appeared out of the blue sky above a Texas home, deposited its payload of a mid-morning snack in the yard and zoomed off, as deliveries by drone start becoming a reality in America. The little aircraft appeared out of the blue sky above a Texas home, deposited its payload of a mid-morning snack in the yard and zoomed off, as deliveries by drone start becoming a reality in America. Flying shipments of pizzas and birthday gifts have still not become the norm that tech leaders predicted, but the service is available in parts of the United States and gov…