Welcome, foodies and drinkers alike, to our latest edition of iPhone Gems. As you may already know, we’ve previously covered tip calculators, drink recipe apps, and even an application to order take-out from Chipotle, but we’ve never dedicated an entire Gems column to foodie apps. Until now. Below, we’ve assembled a collection of 13 App Store offerings that come from a variety of food and drink categories—everything from do-it-yourself…