Star Wars fans will be thrilled; non-fans will be amazed. I fall into the latter camp. I saw the first film in 1977, on the day it came out, and enjoyed it. Since then, I’ve caught most of the other films, but remain underwhelmed. I just didn’t get it. Friday night at ARCO Arena, I got it. “Star Wars in Concert,” a multimedia spectacular that aims to extend the life of the Star Wars franchise into live performance, delivered a dazzling spectacle that beautifully summarized the entire Star Wars saga for those of us who didn’t connect with the epic on film. The show will be reprised this afternoon at 3 p.m. at ARCO. The hook of the show is John WIlliams’ grandiose music for all six Star