The code is mostly an implementation of a model based on QStorageInfo,
shown in an otherwise uninteresting tree view.
Change-Id: Id6ce70d71ddc9bcd6e82a9ee12f5e1af159eac7a
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
(cherry picked from commit a89f575be3a410a06165dc19961b1a260a67464d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>