By Matt Martell Minnesota sent its starting catcher to Texas for shortstop Isiah Kiner-Falefa and a prospect. The first trade since the lockout was lifted seemingly came out of nowhere. Certainly, you wouldn’t have guessed that the Twins would trade their starting catcher to the Rangers for shortstop Isiah Kiner-Falefa and minor league righthander Ronny Henriquez. Yet that’s exactly what happened Saturday morning. This is not a blockbuster deal, though the two players at the center of this trade, Garver and Kiner-Falefa, are solid big-league players with specific skills that their new teams ne…