NEW YORK — Tommy Gambardella is a master of New York’s construction universe. Each morning before dawn, he rides an elevator more than 50 stories up the side of a skyscraper growing on Manhattan’s West Side. Then, he steps out onto a narrow walkway with a drop-dead view of the city below and mounts some spiral steps into the glass control cab of a tower crane. There, he’s alone, in silence. From high in the sky, he can see the sun light up Manhattan all the way to the harbor and the Statue of Liberty.