“Iran Inside Out” is a must-see, broad-ranging and consistently provocative in both medium and subject matter. There a lot of references here that the non-Iranian viewer has to work pretty hard at, but the Chelsea Art Museum has done a splendid job with its wall texts and catalog, and you’ll come away from this show knowing and thinking about things that had never occurred to you before. At a moment of crucial political imbalance, what more might you ask of an art show?