By Brenda Goh and Jacqueline Wong SHANGHAI (Reuters) – Shanghai authorities battling an outbreak of COVID-19 have erected fences outside residential buildings, sparking fresh public outcry over a lockdown that has forced much of the city’s 25 million people indoors. The largest district in Beijing, meanwhile, will require everyone living or working in the area to take three COVID tests this week, and put more than a dozen buildings under lockdown, after the Chinese capital reported 22 new cases for Saturday. The district, Chaoyang, is home to 3.45 million people. In Shanghai, images of workers…