[systemd] remove SETUID helper

We'll rather set the correct DBus permissions in /etc/dbus-1/system.d.
[systemd] set DBus permissions for starting and stopping endurance
[systemd] permanently enable crash-reporter-endurance service
[core] make CReporterCoreRegistry a singleton
[coreregistry] return from getCoreLocationPaths() by value
[core] add marker file whose presence enables endurance collection
[sailfishui] factor out common code to SystemdServiceSwitch element
[systemd] separate SystemdService::Deactivating state
Incremented version