(Image credit: Shutterstock) We’re now in the second week of May, can you believe it? Summer will be here before we know it. Time is moving way too fast, and so are the constant updates to streaming libraries. Netflix , still leading the pack, adds new originals every week, and it’s easy to miss some great series and movies. So I’ve rounded up three new Netflix shows worth watching this weekend. The biggest new addition is “Lord of the Flies,” a survival drama based on William Golding’s classic novel. This version expands the story into a limited series format, giving more time to explore individual characters. There’s also the second season of a gripping mystery thriller, and a British crime drama starring Steve Coogan, which focuses on the psychological toll of undercover work.…