Ayanna Prescod One minute you’re a teenager ready to “rebel against the universe,” then in the blink of an eye you’re a senior making peace with the life that was handed to you. That’s the short and sweet premise of Noah Haidle’s buttery new drama, “Birthday Candles.” In the play, now having its New York premiere at the American Airlines Theatre on Broadway, Debra Messing (“Will & Grace”, “Smash”) plays the protagonist Ernestine, methodically and graciously moving through the aging process and proving that the recipe to thrive is to simply survive.The ingredients of this Roundabout Theatre Company production are equally measured.