Dev mhuetten cleaning2ctapipe0.8.0
Only minimal changes required to make the utils/ classes and cleaning_analysis.py to work with ctapipe 0.8.0. For review convenience, let's do pep8 astyling separately at later stage.
Only minimal changes required to make the utils/ classes and cleaning_analysis.py to work with ctapipe 0.8.0. For review convenience, let's do pep8 astyling separately at later stage.