If you’re not a fashionista, you may wonder, when stepping into the very red Ikram building, if you’ll be allowed to leave in the dowdy duds in which you entered. That’s because you’ve just penetrated a hallowed Vogue-style space in River North, filled with couture du jour, thanks to owner Ikram Goldman, one of the best-known names in fashion in the Midwest. Her shop doesn’t just follow the trends, it actually sets them, as one of her clients, a woman named Michelle Obama, can attest.