Add a Generic Track SOA Container

Implementation of v2 Track container mentioned to #97 (closed) , here named as Generic Tracks. Implements storage of full state covariance information, multiple states per track, and and storage of LHCbID's by subdetector. Currently, an exception is thrown when a state that is undefined for a certain track type is accessed. Associated with Rec!2356 (merged) and Phys!882 (merged) @mramospe @mvesteri @apearce

FYI @ldufour @nnolte

fyi == it is in a state where somebody should have a look?

@agilman, something I forgot to mention is that in LHCb there is a convention on how to format the code (both for C++ and python). There is a command called lb-format that, given a list of files, applies the format in-place. You can call something like lb-format $(find . -name "*.py") $(find . -name "*.cpp") $(find . -name "*.h") to format everything in the current folder (it may turn time consuming, so consider formatting only the new/modified files). The current pipeline is failing because the format is wrong. Also, no check is currently done to determine if the current branch compiles correctly and that there are no conflicts with other parts of the software (also cross-project and cross-platform). This is done once we mark everything as ready and/or once we set some labels in the merge request description.

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• 3d583b60 - max number of LHCbID's updated in accordance with PrLongTracks.h. Added more comments to v2 tracks.

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• 9eaf30ca - lb-format ran over code

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• 9a9ecdbc - Fixed formatting

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@nnolte we have been discussing today that we might need to use track converters in order to test this new track object. Is there anything that we could use straight away, or should we define a converter like in https://gitlab.cern.ch/lhcb/Rec/-/blob/master/Pr/PrConverters/src/fromV2TrackV1Track.cpp?

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• e51a1f56 - Track type now set at runtime and at container level in v2Tracks

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• b04e2aeb - Fixed formatting

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• b9e17d27 - Added LHCbIDs by subdetector and getters for LHCbIDs

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• c80c4dab - Fixed formatting

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• 35c83c9a - Renamed tracks to Generic Tracks

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• f59d7c39 - Tracks named to generic and altered state storage

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• a4b3aef6 - Fixed formatting

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• 80e43600 - Reorder the LHCb IDs in the track container to reflect the order of the...
• 0fcbe98c - Merge branch 'mramospe-generic-tracks' into 'alexgilman_v2tracks'

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• a8ade86b - States updated and Particle_v2.h changed to Generic Tracks
• 5c41db0b - States updated and Particle_v2.h changed to Generic Tracks

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• 240376d0 - Replaced Particle_v2 with PrGenericTracks instead of PrFittedTracks

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• 1847a7e7 - Fixed formatting

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• 41fc55b2 - Move functions to convert the tracks from Rec to LHCb

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added RTA WP3 label