What Will It Be, New York City? For $166 Million, Make It Snapple
New York City Mayor Michael Bloomberg announces partnership between city and Snapple that will make it city's official beverage; deal gives company exclusivity in city's 1,200 public schools for $8 million per year for five years; Snapple is also expected to pay city about $13 million annually, based on sales, and will spend about $12 million per year on advertising that promotes New York City; is developing four new juice drinks to comply with city's recent ban of soda and candy from school vending machines (M)