Ever wonder what Angela Chase would have been like as an adult? Watch Dylan Kreiger on “quarterlife,” the latest generational drama from “My So-Called Life” creators Marshall Herskovitz and Ed Zwick.  Bitsie Tulloch plays the lead character of the revolutionary Internet drama perfectly, right from the awkward opening scene when she introduces her video blog. “quarterlife,” which debuted on MySpace with two eight-minute episodes Sunday night and airs on its own website (quarterlife.com) on Monday, has generated a lot of press in its attempt to change the future of television. There’s plenty to say about that subject but the show’s first test is: should you watch? Yes, you should. It’s first-class.