EXCLUSIVE: Andrew Barrer & Gabriel Ferrari, who spent half a year doing the production rewriting on Marvel’s Ant-Man, have become the latest to join the Writer’s Room that Paramount Pictures and director Michael Bay have organized to hatch sequels, prequels and spinoffs on their billion dollar Transformers franchise. I’m hearing that one of the ideas in the works has a working title of Transformers One, and that it is more or less an origins story that takes place on…