[MATH][GENETICS] Review of PR #197

[Avijit Basak]

Hi All

         I have created the *PR #197* consisting of changes for JIRA
MATH-1563, Task MATH-1618. This is the primary work to standardize the
design of GA module. The build has passed. I would like to request a review
of the PR. Once the primary design is standardized I can check in further
changes like introduction of adaptive model and data structure change for
Binary chromosomes.
         Kindly let me know for any concerns or queries.

Thanks & Regards
-- Avijit Basak