A simple TUI for usbguard

Features:
- Clear view of all devices and their status
- Toggle between allowed and denied by key
- Disabling USB devices that are not hotplugable can not be disabled. This
  prevents you from locking yourself out by accidentally disabling your USB
  controller.

Dependencies:
  python3, urwid, usbguard

Install:
  $ sudo install usbguard-tui.py /usr/local/bin/usbguard-tui