Virtual stylus emulator

TO DO

Allow to select USB device

Allow to specify tablet screen size

Allow to set pressure sensitivity

Allow to save device settings

Add eraser support

Improve usb connection auth on android

Add flags to debugging mode

Package with flatpak, fix .deb

Download the [.deb](https://github.com/Mathieu-Beliveau/android-virtual-pen/releases/download/0.1/virtual-pen-linux-host_0.1-1_amd64.deb)

and install with: `sudo dpgk -i ./virtual-pen-linux-host_0.1-1_amd64.deb`

Add tilt support