By Laura McGuire The owners of Wingstop, a fast food chain targeted at social media-obsessed Gen Z, have said they plan to open up to 100 stores over the next five years, a boost for Britain’s ailing hospitality market. Tom Grogan and Herman Sahota, who head up Lemon Pepper Holdings, the master franchisee of Wingstop in the UK,already have 43 restaurants across the UK, including 18 sites in London. The pair, who run the business alongside the chain’s third co-owner Saul Lewin, had no prior experience in the food and beverage game before bringing the popular American fast-food chain across the …