EXCLUSIVE: Robert Taylor is the latest addition to Jon Turteltaub's giant-shark thriller Meg, Warner Bros' upcoming adventure produced in conjunction with China-based banner Gravity. Taylor, the Aussie actor who stars in Netflix’s Western drama Longmire, will star alongside Jason Statham and Fan Bingbing in the film. Longmire‘s fifth season starts streaming Friday. Turteltaub directs Meg, an adaptation of Steve Alten's 1997 novel, with Lorenzo Di Bonaventura, Belle Avery…