GREENSBORO — Jennifer Graf fulfills a longtime dream when she opens her Vintage to Vogue pop-up shop downtown today. Graf rehabbed a space at 124 N. Davie St to sell consigned clothing and accessories. She's opening today at 4 p.m., with a grand opening celebration planned for December. Graf, who has worked as a designer, wants to test operating a retail store. So developer Marty Kotis is letting her use his Davie Street building for the pop-up shop. Graf will sell high-end u