Merge branch 'master-PerfMonVTune-py3' into 'master'

PerfMonVTune: Python3 fix for importing VTuneProfilerService

See merge request atlas/athena!35119

Control/PerformanceMonitoring/PerfMonVTune/python/JobOptCfg.py

-# Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 
-from PerfMonVTuneConf import VTuneProfilerService as _VTuneProfilerService
+from PerfMonVTune.PerfMonVTuneConf import VTuneProfilerService as _VTuneProfilerService
 
 class VTuneProfilerService( _VTuneProfilerService ):