Global Switchable Film And Glass Market By Type (Electrochromic Switchable Film and Glass, Thermochromic Switchable Film and Glass, SPD Switchable Film and Glass, PDLC Switchable Film and Glass), By Application (Commercial, Transportation, Residential, and Others), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029