By Lucy Kenningham Shed your City skin and play the part of a Georgian aristocrat, writes Lucy Kenningham, after a stay at Batty Langley’s For all I love the City of London (the people, the vibes, the architecture), it would be lying to call EC1 refined or calm. Buildings are constantly erected, after-work pints get out of hand. The urgent modernity of central London tends to smother the history and scrape away the charm. Too often the city of London is an area to barge through on your way to the office. But what if I told you you could stay in a luxurious restored Georgian era guesthouse, rig…