Implementation of FSD hit reconstruction
Adding detector-specific FSD hit producer, currently very simple ideal one - copying data from digi to hit - adding only geometry information of the center and dimension of the FSD module. Inclusion of FSD into event-building algorithms. Following the templates and just adding cases if the FSD detector objects are processed. Adding FSD to run_reco macros and also to new compiled reco executable. Modified CbmFsdHit class, new constructor with all info needed.