WIP: luna-sysmgr: port to qt5 and use next branch for now

Signed-off-by: Simon Busch <morphis@gravedo.de>
packagegroup-webos-ports-extended: add luna-sysmgr again

We're going to use luna-sysmgr in a UI less variant to utilize all the service
functionality it exposes.

Signed-off-by: Simon Busch <morphis@gravedo.de>