By Tommy Wilkes and John McCrank LONDON/NEW YORK (Reuters) -Britain and the United States targeted Russian banks on Thursday as part of a new package of sanctions following Moscow’s invasion of Ukraine. The European Union is expected to follow suit. Here is a rundown of how sanctions announced impact banks and investors: WHAT HAS BEEN ANNOUNCED SO FAR? The U.S. Treasury Department said it was targeting the “core infrastructure” of the Russian financial system, sanctioning two of the country’s largest banks – state-backed Sberbank and VTB. Also on the list of sanctions are Otkritie, Sovcombank …