Bring sample desktop app

This is a sample app showing off the Bring Guacamole client capabilities. It implements a simple VNC/RDP client, using the Fyne GUI toolkit

Here are the steps to run the app:

1. You'll need a working guacd server in your machine. The easiest way is using docker and docker-compose. Just call docker-compose up -d in the root of this project. It starts the guacd server and two sample headless linux: one with a VNC server and another with RDP

2. Run the sample app with make rdp or make vnc. It will connect to the appropriate linux container started by docker.

TODO

• Handle Caps Lock (waiting Fyne support)
• Turn off mouse cursor (waiting Fyne support)
• Window resizing
• Dialog to open connection