Can a passenger rail startup bring back the glamour of luxury overnight trains connecting Los Angeles and San Francisco that haven’t been seen since the 1940s?Co-founders Joshua Dominic and Thomas Eastmond think so — and there’s a connection to freight rail at the heart of their proposal.Dreamstar is a private venture reimagining medium-length passenger service in a setting that harks back to the heyday of first-class trains with all-bedroom accommodations, onboard gourmet dining and five-star h...