Dodgers outfielder Trayce Thompson had moments he thought his MLB career was never going to happen. Now he’s heading to October with the best team in baseball. Paul McCartney could have been singing about Trayce Thompson and the Dodgers when he sang, “The long and winding road that leads to your door will never disappear.” The outfielder has been an indispensable part of L.A.’s dominant summer, but “long and winding” might be underselling the road that led Trayce back to the Dodgers’ door. Thompson played for the Dodgers in 2016 and 2017. Since then, he’s been a part of the…