Empty Capsules Market, By Product (Gelatin Capsulesand Non-gelatin Capsules), By Functionality (Immediate-release Capsules, Delayed-release Capsules, Sustained-release Capsules), By Material (Pig Meat Gelatin Capsules, Bovine Gelatin Capsules, Plant-based Capsules, Starch-based Capsules, Pullulan Capsules, Others), By End User (Pharmaceutical Companies, Cosmetic & Nutraceutical Companies, Clinical Research Organizations, Others), By Geography (North America, Latin America, Europe, Asia Pacific, Middle East & Africa)