The Brewers dared the Cave Man, but he brought the big club in the clutch on Monday night. Jake Cave’s walk-off single in the 10th inning lifted the Rockies to an 8-7 win over the NL Central-leading Brewers in the series opener at Coors Field, giving the Rockies consecutive wins for the first time in a month. Prior to Cave’s at-bat, the Brewers walked both Brenton Doyle and Nolan Jones to load…