The merge request aims to improve the clustering functionality of TrigFTKSim. The following modifications have been made:
- atlClustering is replaced by the FTKClusteringEngine class.
- FTKClusteringPrintout is tasked with handling printing functions which were previously part of the main clustering code.
Apart from the clustering improvements, this merge aims to clean a part of legacy code that is not needed anymore. These modifications include the removal of the parameters x, y and z from FTKRawHit and the removal of SCTtrk which is also not going to be needed in the future.