Store hits indices in Pr::Tracks

Change PrForwardTracks to PrLongTracks to make it adaptable for both Forward tracks and match tracks;

Add hits indices ft_index, vp_index and ut_index, nFTHits, nUTHits, nVPHits to PrLongTracks.h;

Add hits indices vp_index and ut_index, nUTHits, nVPHits to PrUpstreamTracks.h;

Change hit to vp_index and add lhcbID in PrVeloTracks.h for consistency;

Adapt 'PrFittedForwardTracks.h' and PrIterableFittedForwardTracks.h accordingly.

should go with Rec!2063 (merged) Moore!517 (merged)

@sstahl @decianm @ahennequ

mentioned in merge request Rec!2063 (merged)

changed title from WIP: Store hits indices in {-PrForwardTracks-} to WIP: Store hits indices in PrForwardTracks

changed the description

added 1 commit

• 2e283f92 - change the name of hit indices container

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changed the description

added 18 commits

• 2e283f92...5ad6f195 - 16 commits from branch master
• 4759d6b5 - Merge branch 'master' into peilian_storeHitsIndices
• d657807b - add hits indices to upstreamtrack

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mentioned in merge request Rec!2073 (merged)

mentioned in issue Rec#139 (closed)

changed milestone to %HLT2 Tracking speedup

added 1 commit

• 035c4537 - add velo hits information in constructor

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added 1 commit

• 04b04f7c - Fixed formatting

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added 1 commit

• 88b55748 - remove copy in constructor

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added 1 commit

• c1ce9f8c - Fixed formatting

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added 2 commits

• 7a20b2d9 - add lhcbIDs
• 31413a27 - add lhcbID to the tracks

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added 1 commit

• df4b7505 - change PrForwardTracks to PrLongTracks

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added 1 commit

• 79f65861 - Fixed formatting

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changed title from WIP: Store hits indices in PrForwardTracks to WIP: Store hits indices in Pr::Tracks