American Airlines Theatre, New York A diverse re-envisioning of the 1969 historical musical offers up some great opportunities for a game cast but struggles to justify its existence The first moments of 1776, a revival of Sherman Edwards and Peter Stone's 1969 musical, now re-envisioned by Jeffrey L Page and Diane Paulus are, unfortunately, its finest. The company, 22 strong " women, transgender actors and non-binary…