Global Edible Gold Market Assessment, By Type [Leaf, Flakes, Crumbs, Dust], By Purity Level [Less Than 95%, 95.1%-98%, More Than 98%], By Application [Food, Drinks, Cosmetics, Others], By End-use Industry [Domestic, Commercial], By Distribution Channel [Online Retail, Specialty Food Stores, Gourmet Shops, High-end Supermarkets, Others], By Region, Opportunities and Forecast, 2016-2030F