add detector correlation histos for RecoMon in every sequence
The detector correlation histos were missing in the ion sequence. But I realised that they are missing in all other sequences too, so I added them.
I tested privately the standalone_hlt2_light_reco_ion_without_UT
and the standalone_hlt2_light_reco_without_UT
, which seems to cover the usage.
Edited by Titus Mombaecher