David Pastrnak recorded all of the Boston Bruins’ offense in the form of his 14th career NHL hat trick—his 12th in the regular season—lifting the Boston Bruins to a 3–2 win over the visiting Tampa Bay Lightning on Thursday night. Pastrnak scored twice in the third period, netting the game-winner off an assist from Taylor Hall at the net-front with 4:10 to play. Erik Haula chipped in on all of Pastrnak’s goals to finish the first three-assist game of his career. It was his second straight multi-assist effort in as many games and third in March. Boston’s Jeremy Swayman made nine of his 22 saves in the third period, moving to 10-1-1 in his last 12 starts. Boston moved ahead of Tampa Bay and into a tie for second place in the Atlantic Division standings with its 13th win in 16 games (13-2-1). Recent acquisition Brandon Hagel and captain Steven …