Hard Coating Market Size, Share, and Industry Analysis By Product (Nitrides, Oxides, Carbides, Carbon, and Other Products), By Technology (PVD and CVD), By Application (Cutting Tool, Decorative Coatings, Optics, Gears, Bearings, Pistons, Cams, Cylinders, Hydraulic/Pneumatic Components, and Other Applications), and Regional Forecast, 2026-2034