Article & Photos by Jacqueline Bennett newsandviewsjb.com   Set on a knoll just off West Main Street close to Rocky Neck State Park, Castello is “Niantic’s newest Italian restaurant.” It is one of those little gems waiting to be discovered as word-of-mouth spreads.   Opened a year ago, Castello is owned by an ambitious young man Stanley Martone, his father Dino Martone and his aunt Marianeve Picone. At 25, Stanley Martone, a graduate of Quinnipiac University, has his bachelors and masters degrees. Out of college, Stanley Martone landed a position with the prestigious Deloitte accounting firm. But the restaurant business is in his blood – from his days as a boy helping his godfather at his banquet hall to being part of his family’s…