As we prepare to celebrate Thanksgiving, my mind is on . . . turkey? Don’t make me laugh, or even chuckle. Yes, of course I’m looking forward to that traditional bird with trimmings, but what REALLY gets my heart pounding this year is oysters. Just down the coast from Beaufort runs the May River, source of some of the tastiest oysters I’ve ever had. I’m carrying a quart of them to Charleston tomorrow, where eldest son Caldwell and I will create a bisque that will make you wan