LArHVData: put current and hv into the same obj, saves memory

Inspired by the discussion of ATEAM-726.

Simplify the layout of LArHVData, saves some 30MBytes vmem on q431.

This merge request affects 2 packages:

• LArCalorimeter/LArRecConditions
• LArCalorimeter/LArRecUtils

Affected files list will not be printed in this case

Adding @pavol as watcher

added JetEtmiss LAr master review-pending-level-1 labels

Running on 1000 events (serial, no MP or MT) from data18_13TeV.00355877.physics_Main.merge.DRAW_ZMUMU.f950_m1831._0041.1, vmem goes from 8251 to 7732 MBytes. This job goes through 109 IOVs of the LAr HV DCS data.

For an MP job, the memory consumption due to conditions objects is multiplies by the number of workers, they are not shared.

The AOD file is identical.

• Walter

CI Result SUCCESS (hash dbc08e61)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 30924]

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 8bf4352e

added sweep:ignore label

mentioned in merge request !42309 (merged)