Global Drinking Fountain Market Size, Share & Demand Report By Product Type (Wall-Mounted, Freestanding, Bottle Filling Stations, Countertop), By Material Type (Stainless Steel, Plastic, Brass), By End-Use (Educational Institutions, Commercial Buildings, Healthcare Facilities, Public Infrastructure, Industrial/Factories), By Distribution Channel (Direct Sales, Retail/Wholesale, E-Commerce), By Technology (Sensor-Based/Touchless, Filtration Integrated, Temperature-Controlled), By Region & Segment Forecasts, 2025–2030