WIP: Rename StorageVolume label with udisks2 backend
This patch was made by Orion Poplawski orion@nwra.com and the original patch can be found here: https://bugsfiles.kde.org/attachment.cgi?id=83215 This patch adds a setLabel method to the StorageVolume interface to be able to rename a volume. Only the UDisks2 backend is implemented by using its DBus Filesystem interface with the SetLabel method call.
The patch was modified to be applied to the upstream Solid framework and a test has been added by using the FakeVolume interface.