Gabe Newell had nearly 3,000 names engraved on a glass wall right where guests step onto his $500 million yacht, the shipyard workers and crew who built and run it. His own name, from back when he worked at Microsoft, sat hidden inside a smiley face in Windows 1.0 for almost 37 years before anybody found it. That hidden smiley goes back to a fight over credit that started at Atari in 1979. Warren Robinett was building Adventure for the Atari 2600 all by himself. Atari's rule was that every…