TrigDecision+HLTResult: decode ROB truncation status

Decode the per-ROB truncation status and store it in the TrigDecision. Since we only support one truncation status, we use the convention of reflecting the main HLT Result ROB if available, otherwise the combined status of all other ROBs (but there should only be one for a given non-Physics stream).

In any case, for severe truncations (debug stream) the status from the event header has priority.

None of this code will actually be used until will mark some of our EDM collection as "truncatable". This will follow as a separate MR.

Companion to !64583 (merged) and relates to ATR-27986. cc @tamartin

This merge request affects 2 packages:

• Trigger/TrigAnalysis/TrigDecisionMaker
• Trigger/TrigSteer/TrigHLTResultByteStream

Affected files list will not be printed in this case

Adding @tamartin ,@fpastore as watchers

added 23.0 Trigger review-pending-level-1 labels

The system determined that CI tests (with names matching "^CITest_SimulationRun(2|3)(FullSim|Hit).*$") are not needed for this code change. They are not run. This is not an indicator to restart the job.

CI Result SUCCESS (hash f4106972)

	Athena
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cmake
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For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 75891]

added review-approved label and removed review-pending-level-1 label

added review-approved-point1 label

mentioned in commit 7d246c45

merged

mentioned in merge request !64889 (merged)