Network as a Service Market Size, Share & COVID-19 Impact Analysis, By Type (WAN as a Service and LAN as a Service), By Enterprise Type (Small and Medium-sized Enterprise and Large Enterprise), By Application (Wide Area Network, Virtual Private Network, Cloud-based Services, Bandwidth on Demand, and Others), By End User (Corporate Customers and Individual Customers), By Industry (Corporate Customers (BFSI, IT & Telecommunication, Manufacturing, Healthcare, Retail, Others)), and Regional Forecast, 2023-2030