Welcome to another special food and drink edition of iOS Gems! Today, we’re taking a look at two apps designed to help users find and share photos of restaurant dishes, and a third app that helps people discover new beers. All of these apps are in the “good” rather than “great” category. Foodspotting and Forkly are both well-designed apps, but as is common to budding social networks, they each suffer from a lack of users,…