It was a very musical-theater kind of evening at the opening night of Kinky Boots on Broadway. Written by Harvey Fierstein, with a score by Cyndi Lauper, the musical follows a drag queen, Lola (played by Billy Porter), as she rescues an ailing shoe factory by teaming up with the owner to manufacture 6-inch stiletto boots. Characters of all stripes and persuasions came out for the festive occasion — all of them ready for their close-up…