Add root version of drive-harddisk
Summary:
T8349
BUG: 399307
I did not add drive-harddisk-home in this commit because it was simply too difficult to make an easily readable symbol for home on the 16px version.
Test Plan:
Reviewers: VDG, ngraham
Reviewed By: VDG, ngraham
Subscribers: ngraham, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D16633