NEW YORK | One of the biggest company stock market flotation on history is about to take place this Friday. With more than 900 million users around the world, Mark Zuckerberg’s company could be valued at $104 billion, that is more than Disney, Ford and Kraft Foods. The excitement grew as Zuckerberg announced that it would offer more shares to investors: 421 million, 25 percent more than it had previously planned…