THE exploding development of tourism in Bali has brought with it a well-publicized boom in upscale fine-dining restaurants, where bills easily climb into the millions of rupiah. Yet many discriminating locals and long-time residents still prefer to frequent some of the island’s informal, family-owned cafes and warungs. Here’s a sample of the best, all-day restaurants that serve home-style cooking in relaxed, pleasant settings—at authentic I