NEW ORLEANS — It was fortunate for the Lakers that they did so much of their work early on Tuesday night. A 40-point lead was feeling frightfully frail toward the end. But an early burst of recordbreaking shooting and 35 points and 17 rebounds from Anthony Davis was enough to pull out a 123-108 victory over the New Orleans Pelicans, a critical win for the Lakers’ postseason hopes, at Smoothie…