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Refit RecVertices based on relation table

Laurent Dufour requested to merge ld-recvertex-refit into master

Adds setup to refit RecVertices using the adaptive PV refitter and a relation table to swap out tracks.

Changes include:

  • The V1V1 PrKalman can now run over the VELO tracks that have been persisted in the PVs. These only have a ClosestToBeam state(?), and its initialisation did not work.** I recommend that we work on getting the VeloKalman available for V1 tracks**

  • An adapter is available that allows to refit RecVertices with the same fitter as used in HLT2! This important step is added by @wouter

  • An algorithm is added to swap out tracks based on a relation table, and provide new PVs with again a relation table between them

This MR goes together with this change in Moore: Moore!3921 and DaVinci MR DaVinci!1175

@wouter @mveghel @dovombru

Edited by Laurent Dufour

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