Merge branch 'FastCaloSim_HitInitOfHitChain' into '21.0'

Fast calo sim hit init of hit chain

See merge request atlas/athena!32603

(cherry picked from commit 0143f36febf196463a836c9116fa67b73cd584b2)

c68ffb9e Allow possibility to initialize the hit of the HitChain only once
d1d21961 Allow possibility to initialize the hit of the HitChain only once: update copyright
8df7485c add init_hit method to FastCaloSim hit chain
f593438d add push_back and printout for init chain in FastCaloSim hit chain
b2eae835 improve debug and verbose log output of TFCSLateralShapeParametrizationHitChain