Global Empty Capsules Market Size, Trends, and Growth Opportunity, By Type (Gelatine Capsules, Non-Gelatine Capsules), By Functionality (Immediate-Release Capsules, Sustained-Release Capsules, Delayed-Release Capsules), By Application (Antibiotic and Antibacterial Drugs, Dietary Supplements, Antacid, Antiflatulent Preparations, Antianemic Preparations, Anti-Inflammatory Drugs, Cardiovascular Therapy Drugs, Cough and Cold Drugs, Other Applications), By End User (Pharmaceutical Industry, Nutraceutical Industry, Cosmetic Industry, and Research Laboratories), By Region (North America, Europe, Asi