Add battery-ups icons

Summary:
This icon is currently only in the Plasma theme, but a version for the icon theme is
needed to fix https://bugs.kde.org/show_bug.cgi?id=411051 by porting KInfoCenter's
energy page away from `WorkspaceComponents.batteryIcon`.

CCBUG: 411051

Test Plan:
{F7271738, size=full}
{F7271744, size=full}

Reviewers: #vdg, ndavis

Reviewed By: #vdg, ndavis

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D23365