Reduce new JO HLT test debug output
In the process of making the newJO HLT tests faster the amount of DEBUG output ca be reduced. This MR does so. Especially slow were printouts of configuration structure that only happen now if the job is in debug mode (i.e. runHLT_standalone_newJO.py and HLTCFConfig_newJO are set to DEBUG or VERBOSE). Tagging @sshaw @dzanzi