According to several employees, select Apple Stores are about to begin testing a repair program that sends some iPhone 6, 6 Plus, 6s and 6s Plus devices off-site for repairs, 9to5Mac reports. Apple has previously completed all repairs in-store while customers wait, but the new pilot program will have Genius Bar employees shipping phones to a repair center if they’re unable to power on, won’t boot up past the Apple logo, or can’t…