BERLIN (Reuters) - Germany is working on a post-coronavirus stimulus package to put Europe's biggest economy back on track once the outbreak is contained, ministers said on Tuesday, as officials added that talks on measures were at an early stage.Chancellor Angela Merkel's cabinet on Monday agreed a package worth over 750 billion euros (694 billion pounds) to mitigate the direct impact of the pandemic, with the government aiming to take on new debt for the first time since 2013.The lower house..