Get rid of KDELibs4Support
Summary: The power management code is adapted from the kscreenlocker project, and added to the "powerdevilcode" library. Also the missed canHybridSuspend property is added to this code.
Reviewers: volkov, afiestas, broulik, graesslin, davidedmundson, Plasma
Reviewed By: davidedmundson, Plasma
Subscribers: graesslin, davidedmundson, broulik, plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D4939