add ActsTrkFinding to use ACTS CKF

A first implementation of ActsTrkFinding/TrackFindingAlg and ActsTrkFindingTool/TrackFindingTool to use Acts::CombinatorialKalmanFilter from Athena.

• With --preInclude ActsInterop.ActsCIFlags.actsValidateTracksFlags:
  • replaces Athena track finding with Acts track finding. Subsequent steps use Acts Trk::Track outputs, so default IDPVM can be used for performance studies.
    • It looks good so far, with one big exception: a large loss of efficiency in the barrel, probably due to loss of most strip hits.
  • also replaces the Acts clusterization with the Athena clusterization in the Acts workflow. This is needed to create PRD links, which are needed while we use Trk::Track as output of the track finding.
• To-do following this MR:
  • fix strip hit association
  • revisit tool interface, or move tool functionality into algorithm.
  • improve Trk::Track creation or replace with new Acts::Track. For Trk::Track:
    • does not add outliers from reverse filtering - is this needed?
    • uses legacy Athena enums, Trk::TrackInfo::TrackFitter::KalmanFitter and Trk::TrackInfo::TrackPatternRecoInfo::SiSPSeededFinder
    • only works with Athena clusterization
    • Unlike Athena algorithm, no additional fit required after Acts CKF. We should disable the global Chi^2 fit in the ambiguity solver.
    • are we using the correct TSOS to calculate the track parameters?

Implements ATLIDTRKCP-355. Details and performance discussed here.