FPGATrackSim: change FPGATrackSimHit raw pointers to shared_ptr
This is a first step to mitigate the memory leak issue observed in FPGATrackSim workflow (related to EFTRACK-546)
Edited by Ioannis Maznas
This is a first step to mitigate the memory leak issue observed in FPGATrackSim workflow (related to EFTRACK-546)