Shota Imanaga steered the Chicago Cubs to a 4-0 victory over the Baltimore Orioles with a stellar six-inning start on Wednesday. Imanaga (8-2) stayed on top of one of baseball’s best lineups in his final appearance before the All-Star Game, striking out six while allowing six hits and a solitary walk at Oriole Park. Seiya Suzuki went 1-for-4 with an RBI, driving in the Cubs’ third run with a ground-ball single in the top of the fifth. The 30-year-old Imanaga, who is set to debut for the National League All-Stars on Tuesday, wrapped up an outstanding first half to his rookie MLB campaign, compr…