13 Jan 2021 / 20:00 H. * Graphic: World FX rates in 2020 http://tmsnrt.rs/2egbfVh * Graphic: Trade-weighted sterling since Brexit vote http://tmsnrt.rs/2hwV9Hv (Adds charts, quotes, updates rates) By Joice Alves LONDON, Jan 13 (Reuters) - Sterling hit a seven-week high against the euro on Wednesday, building on gains during the previous session when the Bank of England's governor dismissed negative rates, while optimism over the pace of Britain's vaccination rollout also offered support. With the economy facing a third national lockdown, Governor Andrew Bailey said there were "lots of issues...