By David Shepardson and Mike Scarcella WASHINGTON (Reuters) -A U.S. appeals court panel on Thursday reinstated President Joe Biden’s executive order mandating that federal civilian employees be vaccinated against COVID-19. By a 2-1 vote, the 5th Circuit Court of Appeals lifted an injunction issued by a U.S. district judge in Texas in January that had blocked enforcement of the federal employee vaccine mandate. Biden said in September he would require about 3.5 million government workers to get vaccinated by Nov. 22, barring a religious or medical accommodation, or face discipline or firing. Th…