Create simple GUI for desktop component

[robinpaulson]

A very basic set of controls, in a point-and-click interface.

Initially we could use "dialog" or "zenity" to control it via a shell script, later perhaps abstract the code from this repo into a "libsimplert" library and create a cli and gui to wrap the library.

[robinpaulson]

Currently there are two parameters to set:

• the interface to connect over
• the nameserver to use for DNS lookups

We also require a "connect" and "disconnect" button.

[robinpaulson]

I'm investigating "yad" (terrible name...), which is a more capable fork of zenity. Stay tuned