Through the years there have been a number of great plays concerning the embattled lives of gay men in our country.Tony Kushner’s classic “Angels in America” is the prime example. But there have been others, including Harvey Fierstein’s “Torch Song Trilogy,” Larry Kramer’s “The Normal Heart” and most recently Matthew Lopez’s “The Inheritance,” an epic 5½-hour, two-part play about gay millennials looking back on the horrific AIDS plague and how …