Lesley Manville is thrilled to be making her Broadway debut in “ Oedipus ,” but there are a few quirks of New York theatergoing she could do without. For starters, there’s the applause that greets her when she first enters. It’s something Manville hasn’t experienced in her decades of stage work in London, where she’s won two Olivier Awards. “Why would you want a round of applause when you’ve not done anything yet?” Manville asks. “All I’ve done is turn up. Sometimes they miss my first few lines