refactor: Use time in IVF fitting

[andiwand]

For some reason we truncate the covariance in order to remove time before the vertex fitting. This might be causing problems in the full billoir fitter because the inverse of the covariance is not well conditions.

[github-actions]

📊 Physics performance monitoring for 0873219

Summary
Full report
Seeding: seeded, truth estimated, orthogonal
CKF: seeded, truth smeared, truth estimated, orthogonal
IVF: seeded, truth smeared, truth estimated, orthogonal
AMVF: seeded, truth smeared, truth estimated, orthogonal
Ambiguity resolution: seeded, orthogonal
Truth tracking
Truth tracking (GSF)

Vertexing

Vertexing vs. mu

IVF seeded

IVF truth_smeared

IVF truth_estimated

IVF orthogonal

AMVF seeded

AMVF truth_smeared

AMVF truth_estimated

AMVF orthogonal

Seeding

Seeding seeded

Seeding truth_estimated

Seeding orthogonal

CKF

CKF seeded

CKF truth_smeared

CKF truth_estimated

CKF orthogonal

Ambiguity resolution

seeded

Truth tracking (Kalman Filter)

Truth tracking

Truth tracking (GSF)

Truth tracking

[andiwand]

this seems only to work in combination with #2137

[codecov]

Codecov Report

Merging #2145 (65896a0) into main (fa36abf) will decrease coverage by 0.01%.
The diff coverage is 16.07%.

❗ Current head 65896a0 differs from pull request most recent head 0873219. Consider uploading reports for the commit 0873219 to get more accurate results

@@            Coverage Diff             @@
##             main    #2145      +/-   ##
==========================================
- Coverage   49.48%   49.48%   -0.01%     
==========================================
  Files         439      439              
  Lines       25130    25126       -4     
  Branches    11600    11599       -1     
==========================================
- Hits        12436    12433       -3     
  Misses       4443     4443              
+ Partials     8251     8250       -1     

Impacted Files	Coverage Δ
.../include/Acts/Vertexing/HelicalTrackLinearizer.ipp	19.23% <0.00%> (+0.48%)	⬆️
...include/Acts/Vertexing/FullBilloirVertexFitter.ipp	26.75% <16.36%> (-1.56%)	⬇️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[andiwand]

removed the changes from #2137 now

[andiwand]

checked the output again - IVF seems to pick up time and fits it. AMVF does not - I suspect that the KF updater also needs some changes. I would leave this for another PR to change

updating reference