MILWAUKEE — A few times already this fledgling season the Cardinals have flaunted the potential depth of their lineup around a power-packed start from Nolan Arenado. It’s getting pitchers deep into games that’s been missing. Miles Mikolas became the first Cardinals starter to get an out in the seventh inning as he, with a gust of runs behind him, worked methodically through Milwaukee’s lineup to carry the Cardinals toward a 10-1 victory Friday night at American Family Field. Everything Mikolas wasn’t in his first start of the season — economical, eager to throw all of his pitches, in command o…