By Randy Mitchell   Driverless delivery. Ghost kitchens. Takeout everything.   What in the name of Ray Kroc has happened to the world of foodservice?   The industry is emerging from its most challenging year with remarkable resilience and some amazing innovations. An operator friend who owns a neighborhood café put it best: “Foodservice had a full-on freak out. But we found ways to make it work. We always do.”   Here are a few quick content bites that illustrate her point.    Bite #1: Driverless delivery   Houston is famous for launching astonishing technology into the heavens. Recently, it also became the test site for rocketing pizzas to hungry Earthlings via driverless vehicles. Who is behind this stellar idea? A technology