Wearing the same pair of socks for a week, dining on soupy Chinese noodles and veggies for breakfast, shampooing in a creek and snacking on energy bars are only a few of the many unique aspects of hiking through China’s countryside. Doug McTavish and Stephen Faulkner (not their real names) know this first-hand. McTavish, 24, and Faulkner, 30, are not…