28 year-old chef Ignacio Mattos started work at 6 am today to get the coals hot enough to roast a pig in the middle of Bond Street this afternoon. The annual Sagra del Maiale event at Il Buco is a celebration of the autumnal equinox and at its center is a whole roasted heritage breed pig. From 1-6 pm, $20 gets you a plate of cross-Ossabaw meat and sides like panzanella with greenmarket vegetables, sausage......