Bug#992887: xball new upstream release

[Jose Da Silva <digital@joescat.com>]

Package: xball
Version: 3.0.1

New upstream release of orphaned Debian Package xball v3.0.1 located here:
https://github.com/JoesCat/xball/releases/tag/v3.1.0

git repo located here:
https://github.com/JoesCat/xball/
Note: lacking prior git or SVN history, this git repo is approximate, but 
not historically correct (as was) - the best I was able to do based on the 
existing Debian xball install files.

More information here:
https://lists.debian.org/debian-devel-games/2021/08/msg00005.html

Thanks,
Joe