Season 2 of HBO’s inventive, exciting version of Westworld begins tomorrow night. But tonight, even if you saw and remember every bit of Season 1 from 2016, you might want to take advantage of tonight’s rebroadcast of the Season 1 finale episode. Consider it a refresher course – and a reminder of not only who’s who on this series about artificial humans and their creators, but, even more important, who’s what…