Fix SysListDumperAlg
Fix SysListDumperAlg after SystematicsSvc migration. SystematicsSvc has to be used directly as SysListHandle now requires inputs and/or systematics tools to be present. Also ability to filter systematics is restored.
Technically the code was using the SystematicsSvc already through SysListHandle, it just wasn't using any functionality of the handle itself, so it makes sense to get rid of it.
Edited by Nils Erik Krumnack