Whether you’re planning to take advantage of North Carolina’s new online gambling laws or just looking for someone to root for, it’s always good to know who is expected to contend for the championship. Here’s a look at the favorites and some dark horses to watch in the 124th U.S. Open. The favorite: Scottie Scheffler has been having an historic year. He’s won five tournaments already. He’s finished in the top 10 of his last eight tournaments, and he’s the top-ranked golfer in the world. Even arresting him mid-tournament, as happened last month in Louisville, couldn’t slow him down. With…