New ITK seed maker

This MR introduces a new implementation of the ITK seed maker, based on the ATLxk implementation from master but keeping the ITk specificities.

https://gitlab.cern.ch/atlas/athena/-/blob/master/InnerDetector/InDetRecTools/SiSpacePointsSeedTool_xk/src/SiSpacePointsSeedMaker_ATLxk.cxx

One of the main motivations is to investigate the impact of the seed confirmation on the fast tracking LRT, which is not available in the existing implementation.

All of the existing functionalities of the existing ITK seed maker are supposed to be reproduced with this implementation, which may be considered as some candidate for the future migration to master, when the expected performance are confirmed.

FYI @ncalace @nstyles @goblirsc @mdanning