Two of the major, and majorly beautiful, monologues in Branden Jacobs-Jenkins’s new play, “War” (at the Claire Tow, through July 3), are spoken by Charlayne Woodard. She plays Roberta, a mother with two adult children, who is and is not present in the opening moments of the first scene. You see, Roberta is in a coma; she had a stroke while spending time with a sibling, Elfriede (Michele Shay, who, like Woodard, has a beautiful voice), whom she did not grow up with. Their father had two different families, worlds and cultures apart. So as we meet the strange amalgam of Roberta’s different worlds arrayed around her hospital bed, the real Roberta, dressed in white, floats into our line of vision; she’s watching the family as she watches us, wondering…