Gallium Arsenide (GaAs) Semiconductors for High-Speed Applications Market Size, Share, Trends, and Forecast (2025–2035): Industry Growth Analysis by Product Type (Discrete Devices, ICs, Photonic Devices, Substrates), Device Type (HEMTs, HBTs, MESFETs, Photodetectors), Application (Telecom, Aerospace & Defense, Consumer Electronics, Automotive, Data Centers, Medical), End-User Industry, Regional Insights, Competitive Landscape, and Opportunities