Fix assignment and perf. improvement in CbmMcbm2018RichPar
2nd requirements MR for !625 (merged), to be rebased and merged after !641 (merged)
In CbmMcbm2018RichPar, add explicit assignment OP constructor + replace map with vector when possible
- Introduce LoadInternalContainers method for setting all memberss derived from other members
- replace fToTshiftMap map with vector as continuous array with always successive keys (faster access)
- add the copy and assignment constructors
- Add a Print method