use kpackage_install_bundled_package

Summary:
use the new package install macro to install them as
as rcc files

Test Plan:
plasmashell starts and most plasmoids seem to work,
still needed a more thorough test

Reviewers: Plasma

Subscribers: davidedmundson, apol, plasma-devel, Frameworks

Tags: Plasma, Frameworks

Differential Revision: https://phabricator.kde.org/D9400