Video Conferencing Market Size, Share & COVID-19 Impact Analysis, By Component (Solution and Services), By Conference Type (Telepresence, Integrated, Desktop, and Service-based Video Conferencing System), By Deployment (Cloud, On-premises), By Enterprises Size (Small and Medium Enterprises (SMEs), Large Enterprises), By Application (Small Rooms, Huddle Rooms, Middle Rooms, and Large Rooms), and Regional Forecast, 2020-2027