Draft: Scifi bias correction

The SciFi cluster position bias is fixed. Might be urgent.

https://indico.cern.ch/event/1129289/contributions/4780395/attachments/2407253/4118590/SciFi_cluster_bias.pdf

also related to: Rec#234

also related to: https://gitlab.cern.ch/lhcb/LHCb/-/tree/SciFi_cluster_bias_fix_zehua