Michael Schneider Variety Editor at LargeAs the Tony Awards return for the first time in more than two years, CBS and White Cherry Entertainment’s Ricky Kirshner and Glenn Weiss faced a challenging task: How to hand out awards, celebrate the best in recent theater and — perhaps most crucially — hammer home the fact that Broadway is back and open for business.One result: Taking advantage of multiple platforms in the ViacomCBS universe by expanding the show to four hours (from its normal three