Used mcbm2020_reco_geo.root file and Fix the path for non kronos macros

Dear Pierre, Added much reconstruction part in all 3 macros mentioned in issue 1827. Added one macro mcbm_event_reco.C with CbmMcbm2018EventBuilder also. Kindly update if tests pass and may be mcbm_event_reco.C can be added as one more test macro.

Vikas

Edit PAL: related to redmine issue refs #1827