ON OFFICIAL COURT documents, her name is Jane Doe No. 5. Now she wants everyone to know her real name. Beth Ferrier. And she wants everyone to hear her story about Bill Cosby. About 21 years ago, after she ended a months-long consensual affair with the entertainer, she says he drugged her when she visited him before a performance in Denver. "He said, 'Here's your favorite coffee, something I made, to relax you,' " said Ferrier, 46, who at the time worked as a model. In a telephone interview from her Denver home, Ferrier told how she drank the coffee...