“Tech mogul” isn’t a way someone would describe Stephen Colbert today, but it could be tomorrow. Though losing his hit show has been hard, he's not letting that slow him down. His latest venture is called Scripto, and it’s not a TV show or a movie. It's a cloud-based software program Colbert and his team designed for themselves to write scripts more efficiently, first at The Colbert Report, then later at The Late Show with Stephen Colbert, which…