perf: Add track summary root writer and standalone script for reco performance plots

[XiaocongAi]

This PR includes the following changes:

• Add root writer for event-wise writing of track summary info, e.g. nMeasurements , nOutliers and fitted track parmeters of all reconstructed tracks
• Add script for making reco performance plots based on two types of root files: the track summary root file and the truth track finding performance root file (which contains the truth particle info). This allows for more flexible and standalone performance validation compared to writing out the performance plots along with reconstruction.

NB: In principle, the track summary info can also write out the corresponding truth particle info for each reconstructed track. In this sense, it can supersede the current RootTrajectoryParametersWriter. This will be handled in a follow-up PR.

[codecov]

Codecov Report

Merging #841 (6f32552) into main (af36fb1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #841   +/-   ##
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  Coverage   48.47%   48.47%           
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  Files         329      329           
  Lines       16975    16975           
  Branches     8028     8028           
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  Hits         8228     8228           
  Misses       3092     3092           
  Partials     5655     5655           

Impacted Files	Coverage Δ
.../include/Acts/EventData/MultiTrajectoryHelpers.hpp	50.00% <ø> (ø)

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[XiaocongAi]

Hi @asalzburger , could you help have a look?

[asalzburger]

This is fine to go, as it only adds new code & hardly touches existing code I will forward merge it in.