Phil Gawne, the transportation minister on the Isle of Man, is working 16-hour days on two projects rooted in radically different eras. First, he’s trying to salvage the island’s horse-drawn carriages that date to 1876. At the same time, Gawne is leading a project to potentially lure companies that make fully self-driving cars, vehicles without steering wheels or pedals. Such is the life of a bureaucrat on one of the world’s most unusual islands. The…