refactor: Use makeX to construct tracks and track states

[andiwand]

Replaces getX(addX()) with the helper makeX()

[codecov]

Codecov Report

Attention: Patch coverage is 21.42857% with 11 lines in your changes are missing coverage. Please review.

Project coverage is 49.05%. Comparing base (9c8141e) to head (4adbdf7).

Files	Patch %	Lines
...de/Acts/TrackFinding/CombinatorialKalmanFilter.hpp	0.00%	3 Missing and 3 partials ⚠️
...nclude/Acts/TrackFitting/GlobalChiSquareFitter.hpp	33.33%	0 Missing and 2 partials ⚠️
...re/include/Acts/TrackFitting/GaussianSumFitter.hpp	0.00%	0 Missing and 1 partial ⚠️
Core/include/Acts/TrackFitting/KalmanFitter.hpp	0.00%	0 Missing and 1 partial ⚠️
Core/include/Acts/TrackFitting/detail/GsfActor.hpp	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3074   +/-   ##
=======================================
  Coverage   49.04%   49.05%           
=======================================
  Files         494      494           
  Lines       28979    28972    -7     
  Branches    13746    13741    -5     
=======================================
- Hits        14214    14211    -3     
  Misses       4929     4929           
+ Partials     9836     9832    -4     

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[github-actions]

📊: Physics performance monitoring for 4adbdf7

Full contents

physmon summary

• ✅ CKF truth_smeared
• ✅ IVF truth_smeared
• ✅ AMVF truth_smeared
• ✅ Track Summary CKF truth_smeared
• ✅ Seeding truth_estimated
• ✅ CKF truth_estimated
• ✅ IVF truth_estimated
• ✅ AMVF truth_estimated
• ✅ Track Summary CKF truth_estimated
• ✅ Seeding seeded
• ✅ CKF seeded
• ✅ IVF seeded
• ✅ AMVF seeded
• ✅ AMVF (+grid seeder) seeded
• ✅ Track Summary CKF seeded
• ✅ Seeding orthogonal
• ✅ CKF orthogonal
• ✅ IVF orthogonal
• ✅ AMVF orthogonal
• ✅ Track Summary CKF orthogonal
• ✅ Ambisolver seeded
• ✅ Ambisolver orthogonal
• ✅ Seeding ttbar
• ✅ CKF ttbar
• ✅ Ambisolver
• ✅ Track Summary CKF ttbar
• ✅ AMVF ttbar
• ✅ AMVF (+grid seeder) ttbar
• ✅ Truth tracking (GSF)
• ✅ Truth tracking
• ✅ Truth tracking (GX2F)
• ✅ Particles fatras
• ✅ Particles geant4

[acts-project-service]

✅ Athena integration test results [93c3dd0]

✅ All tests successful

status	job	report
🟢	run_unit_tests
🟢	test_ActsEFTrackFit
🟢	test_ActsPersistifySeeds
🟢	test_ActsBenchmarkWithSpot
🟢	test_ActsAnalogueClustering
🟢	test_ActsConversionWorkflow
🟢	test_ActsWorkflowFastTracking
🟢	test_ActsWorkflow
🟢	test_ActsValidateAmbiguityResolution
🟢	test_ActsValidateResolvedTracks
🟢	test_ActsValidateTracks
🟢	test_ActsValidateActsCoreSpacePoints
🟢	test_ActsValidateActsSpacePoints
🟢	test_ActsValidateSeeds
🟢	test_ActsValidateOrthogonalSeeds
🟢	test_ActsValidateClusters
🟢	test_ActsPersistifyEDM
🟢	test_ActsGSFRefitting
🟢	test_ActsKfRefitting
🟢	test_ActsExtrapolationAlgTest
🟢	test_ActsITkTest
🟢	run_workflow_tests_run4_mc
🟢	run_workflow_tests_run2_mc
🟢	run_workflow_tests_run2_data
🟢	run_workflow_tests_run3_mc
🟢	run_workflow_tests_run3_data
🟢	run_art_test: test_data18_13TeV_1000evt
🟢	run_art_test: test_ttbarPU40_reco