Update: Comments from Robert H. Resis, a principal shareholder at Banner & Witcoff, were added to the story.One of the world’s most famous pirates has been dead for 300 years, but a piracy case involving his sunken treasures is before the nation’s highest court.Now a group of Chicago lawyers has chimed in, hoping to sink a federal appeals court decision that gives state governments sovereign immunity from copyright-infringement suits.In this case, a filmmaker sued the state of North Carolina alleging it …