By Michael Moran & Paige Holland & Richard Blackledge Kate Middleton, the Princess of Wales, has a secret code name that she once accidentally revealed. The British Royal Family, including the late Queen, Charles and Camilla, are known to use pseudonyms for security reasons and perhaps for a bit of fun too, according to the Daily Star. In 2010, while Prince William was working as a search and rescue pilot in Wales, Kate let slip one of her ‘secret’ names. She was shopping for a wetsuit but forgot her purse. When the shop owner, Dave Buckland, asked for her name to reserve the item, she respond…