At 68 years old, and after about 100 films and 16 seasons on “The View,” Whoopi Goldberg thinks there’s still part of her you do not know. She’s penned a memoir, “Bits and Pieces: My Mother, My Brother, and Me,” which she calls a “thank you” to her late mother, Emma, and late brother, Clyde. Goldberg talks with correspondent Seth Doane about her remarkable path, from a housing project in New York’s Chelsea neighborhood, to a retreat overlooking a peninsula on the island of Sardinia.