By thomas.malina@iliffepublishing.co.uk (Thomas Malina) The centre of Sudbury will light up in festive colours on Friday night, in what is expected to be the town’s biggest ever switch-on event. The Christmas Lights Switch-on and Fair will take place from 5pm to 9pm, with late-night shopping and entertainment spread throughout Market Hill, North Street, East Street and Old Market Place. More than 70 food, drink and gift stalls, live music, festive characters, street performers, Christmas carols and the popular Santa’s grotto have been lined up for the night, organised by Sudbury Town Council’s…