Japan winger Kaoru Mitoma scored the opener as Brighton cruised past 10-man Everton 3-0 away on Saturday to begin the new Premier League season. Samurai Blue attacker Takumi Minamino also struck in France, leading Monaco to a 1-0 home win over Saint Etienne in their Ligue 1 curtain-raiser. In league action for the first time since February after a lower back issue, Mitoma came back with a bang as he volleyed in Yankuba Minteh’s cross at the far post for the Seagulls’ first goal of the campaign — and also under their new 31-year-old manager Fabian Hurzeler — 25 minutes into the action at Good…