Add support for web socket endpoints

[pcgeek86]

Polaris Feature Request

Is your feature request related to a problem? Please describe

Nope

Describe the solution you'd like

Add support for websockets in Polaris.

New-PolarisWebsocket -Path /my/endpoint -ScriptBlock { }

Describe alternatives you've considered

Implement a websocket server myself, using a C# library.

Additional context

Add any other context or screenshots about the feature request here.