Alicia Keys, Swizz Beatz and his ex-wife Mashonda Tifrere celebrate birthdays and holidays together. In November they will all gather at the same Thanksgiving table. But the trio wasn’t always so tight. The family appeared on the Wednesday, October 3, episode of Good Morning America to discuss Tifrere’s new book Blended about coparenting. (Keys, 37, penned the forward while Beatz, 40, wrote a …