By Larry Fine SAN FRANCISCO - The irresistible talents of the Kansas City Royals' outfielders may be tested by the inscrutable elements of San Francisco's quirky right field when the World Series resumes on Friday. Lorenzo Cain, Jarrod Dyson and Nori Aoki all had a cram course on Thursday's off-day in gauging caroms off the AT&T Park wall ahead of a Game Three that will snap a 1-1 tie in the best-of-seven championship. "It's tough," said center fielder Cain, who has been filling up a highlight reel with an array of diving catches this postseason. ...