Queens Democratic Sen. Tony Avella might be described as a Senator Pothole in the Al D’Amato mold: His web page features his efforts to solve local problems such as deteriorating sewer lines and noise from airplanes overhead. On Tuesday, though, he got in the middle of a debate that has long simmered in Asia and which is resonating in the U.S., over the Japanese use of Korean “Comfort Women” in Wo