add .arcconfig file
Summary: Signed-off-by: Gustavo Carneiro <gcarneiroa@hotmail.com>
Reviewers: tcanabrava, andreagenor, KDE Games, patrickelectric
Reviewed By: andreagenor, patrickelectric
Subscribers: aacid, cfeck, kde-games-devel
Tags: KDE Games
Differential Revision: https://phabricator.kde.org/D20187