make a version of PhaseII compatible with the new Run 4 run numbers

attempt to create a version of PhaseIISimulation using the new run number convention to be able to deploy the new conditions tag https://twiki.cern.ch/twiki/bin/viewauth/AtlasComputing/ConditionsRun1RunNumbers#RUN_4_IOV_Schemes tagging @tstreble, @sch, @tlari, @mbandier, @lderamo, @tadej and @dshope for comments (please also add relevant experts)