Packaging xfce4-windowck-plugin

[Akbarkhon Variskhanov <akbarkhon.variskhanov@gmail.com>]

Hello.

I have put together a Debian package for xfce4-windowck-plugin[1],
which is a real game-changer for laptop users. It combines so well
with Xfwm4's "Hide title of windows when maximized" option.
I tried my best to strictly follow the Debian Policy and best practices
but there's probably a couple of things missing in the final package.

I'd also like to join the team and help with packaging (which is already
in a great shape, by the way), so please consider this request as well.

[1] https://mentors.debian.net/package/xfce4-windowck-plugin/

Your suggestions, feedback and advice are appreciated.

Thanks everyone for your contributions and amazing work!

Regards,
Akbar.