They are a rare species, these gay Iowans who have moved out to the Golden State, the perfect journalistic formula to comment on today's news of the Iowa Supreme Court approving gay marriage while its California colleagues mull this same issue. But we put on our intrepid reporter cap and found two such individuals. (Actually, it turned out to be extremely easy, seeing that this reporter hails from Iowa herself.)Neither transplanted Iowan said that he or she was planning a wedding on the Bridges