Mecox Gardens, that most stylish of home furnishings and accessories shops, has become an indispensable resource for designers and design aficionadas everywhere. Just try getting through an issue of House Beautiful, Veranda, or Elle Decor without a Mecox Gardens credit. You can’t….So this is exciting news: Mecox Gardens has a new website. And the selection is HUGE. It’s a one-man Pinterest. It’s Houzz at a glance. It’s very good…