Add missing components in org.kde.plasma.components 3.0

Summary:
These were created but never installed. Was looking into porting krunner
to 3.0 and they were missing.

Test Plan: Used them in the WIP port of KRunner

Reviewers: Plasma, mart

Reviewed By: Plasma, mart

Subscribers: kde-frameworks-devel

Tags: Frameworks

Differential Revision: https://phabricator.kde.org/D22546