By Casey Hall SHANGHAI (Reuters) – China’s coronavirus-driven economic slowdown is proving to be a boon for Zhu Tainiqi, the Shanghai-based founder of second-hand luxury goods marketplace ZZER, who is now scouting for shop space to expand the business. The former venture capitalist is seeing a surge in people looking to sell their Hermes Birkin bags or Rolex watches to raise cash, as well as a jump in interest from belt-tightening shoppers. “More and more people are now aware they can sell luxury goods for some money and the buyer side is noticing that they can get a great deal,” said Zhu, 33….