Make muon alignment work with PrKalmanFilter

Currently, the PrKalmanFilter does not know how to treat a track in the muon system. It has to be adapted to do this.

The tracks with muon hits are made in this algorithm: https://gitlab.cern.ch/lhcb/Alignment/-/blob/master/Alignment/AlignTrTools/src/TrackMuonMatching.cpp

and the alignment is then run with: https://gitlab.cern.ch/lhcb/Alignment/-/blob/master/Alignment/TAlignment/python/TAlignment/TrackSelections.py

Open points are:

• Implement the scatters needed in the muon system.
• Which track type will be used? v1 or v3? Currently the v3::Track is not equipped to understand muon hits.
• How will this track be passed to the PrKalmanFilter, as currently it only understands PrTracks
• Write a new sequence to obtain muon tracks, fit them, and combine them with long tracks.

@ausachov @gunther @sborghi @smalde @svecchi @cmarinbe