TOKYO (Reuters) - Japan’s largest airport opened a novel coronavirus testing facility on Monday as it takes steps to reopen international travel that has been largely grounded for months by the pandemic.The Narita International Airport PCR Center is aimed at outbound travellers who need proof that they are virus-free when they arrive at their destinations. Japan on Friday eased travel curbs for nine Asian countries and regions. Narita is one of two international hubs serving the Greater Tokyo area.