Fix for vertexing performance plots

[jmw464]

Summary

This pull request introduces the following changes

• Fixes issues with current way vertexing performance is calculated whereby reconstructed primary vertices are not removed correctly.
• Changes the way plots are generated so that multiple jet flavours can be plotted at the same time and different plots are created depending on whether SVs are expected or not.

Conformity

• [x] Changelog entry
• [x] Documentation

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.80702% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 97.80%. Comparing base (b9d9378) to head (7694976).

Files	Patch %	Lines
puma/hlplots/aux_results.py	94.54%	3 Missing :warning:
puma/hlplots/tagger.py	77.77%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #253 +/- ## ========================================== + Coverage 97.78% 97.80% +0.01% ========================================== Files 43 43 Lines 4568 4642 +74 ========================================== + Hits 4467 4540 +73 - Misses 101 102 +1 ```

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[samvanstroud]

Great thanks @jmw464 !