Add support for remote console

Should be possible to either extend the WsProxy-based system, or possibly look into running a separate proxy with [FreeRDP-WebConnect](https://github.com/FreeRDP/FreeRDP-WebConnect), or maybe something [rdpjs](https://github.com/citronneur/node-rdpjs)-based (Like [mstsc.js](https://github.com/citronneur/mstsc.js))