Fix use of TrigDecisionTool in simple macro, and add example as a unittest - TEvent will now fire BeginEvent incidents

This MR will hopefully help preserve the knowledge of how to do simple tests with tools outside of a package-based environment.

The MR makes TEvent fire the BeginEvent incidents, which were previously being done by the AthenaEventLoopMgr but has since been disabled in athena. This is essential in the case of a simple eventloop job, which would otherwise require the scheduling of the AthIncFirerAlg in such loops.

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• 2bb64b56 - Macro demonstrating how to run the TrigDecisionTool as a standalone root script

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• d282058c - Update AthenaEventLoopMgr.h - add fireIncidents property

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• 50c62aea - Update AthenaEventLoopMgr.cxx - add firing of incidents in event loop if requested

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added 1 commit

• e0ce9bfb - Update TEvent.cxx - tell eventloop to fire incidents

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marked this merge request as ready

This merge request affects 3 packages:

• Control/AthenaServices
• PhysicsAnalysis/POOLRootAccess
• Trigger/TrigAnalysis/TrigDecisionTool

Affected files list will not be printed in this case

Adding @tamartin ,@ssnyder ,@gemmeren ,@maszyman as watchers

added Analysis Core Trigger analysis-review-required main review-pending-level-1 labels

added 1 commit

• 05b5073c - Update macroTest.cxx - remove whitespace that snuck in for some reason when I pasted in the macro

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This merge request affects 3 packages:

• Control/AthenaServices
• PhysicsAnalysis/POOLRootAccess
• Trigger/TrigAnalysis/TrigDecisionTool

Affected files list will not be printed in this case

Adding @maszyman ,@tamartin ,@gemmeren ,@ssnyder as watchers

added 1 commit

• c15f2d9a - Add example of using TrigDecisionTool in a standalone python script

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This merge request affects 3 packages:

• Control/AthenaServices
• PhysicsAnalysis/POOLRootAccess
• Trigger/TrigAnalysis/TrigDecisionTool

Affected files list will not be printed in this case

Adding @ssnyder ,@tamartin ,@maszyman ,@gemmeren as watchers

added 1 commit

• 4edb65dc - Update macroTest.cxx - add some comments about how to access event info

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added 1 commit

• 571ded0f - Update CMakeLists.txt - add python test

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marked this merge request as draft

This merge request affects 3 packages:

• Control/AthenaServices
• PhysicsAnalysis/POOLRootAccess
• Trigger/TrigAnalysis/TrigDecisionTool

Affected files list will not be printed in this case

Adding @ssnyder ,@tamartin ,@maszyman ,@gemmeren as watchers

Just marking a draft to avoid numerous pipelines. Please undraft when ready.

removed review-pending-level-1 label

added review-user-action-required label

yeah sorry, I'm actually all done now. Someone suggested I add a demo of python scripting as well, since python is what the kids are all into these days