By Andrea Shalal and Andreas Rinke SCHLOSS ELMAU, Germany (Reuters) – Panned by critics for dragging his feet on Ukraine, called a “sulky liver sausage” by the Ukrainian ambassador, German Chancellor Olaf Scholz on Sunday won public praise from a man he has long privately admired: U.S. President Joe Biden. Reaching over to touch Scholz’s arm as they sat at the start of a G7 meeting in the Bavarian Alps, Biden said it was “in no small part because of you” that the West had stuck together against Russia four months after the invasion of Ukraine. The two men, who are from different political gene…