Global Gelatin Substitutes Market Size, Share & Demand Report By Product Type (Plant-Based Hydrocolloids, Microbial & Fermentation-Based Polymers, Protein-Based Gel Systems, Synthetic & Semi-Synthetic Polymers), By Application (Food & Beverages, Pharmaceuticals, Nutraceuticals, Cosmetics & Personal Care, Industrial Applications), By End-Use Industry (Food Processing, Pharmaceutical & Healthcare, Cosmetics & Personal Care, Industrial Manufacturing), By Region & Segment Forecasts, 2026–2031