Add logging config

python/dune/perftool/logging.conf

+[loggers]
+keys=root,dune.perftool.pdelab.localoperator
+
+[handlers]
+keys=consoleHandler
+
+[formatters]
+keys=simpleFormatter
+
+[logger_root]
+handlers=consoleHandler
+
+[logger_dune.perftool.pdelab.localoperator]
+level=INFO
+handlers=consoleHandler
+qualname=dune.perftool.pdelab.localoperator
+propagate=0
+
+[handler_consoleHandler]
+class=StreamHandler
+formatter=simpleFormatter
+args=(sys.stdout,)
+
+[formatter_simpleFormatter]
+format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
+datefmt=