- Fixes from ci_cd branch Squashed in one, it include below fixes:
  -- Readme: Updated readme
  -- Updated api specification and tests
  -- Remove redundant code
  -- Fix '==' operation for boolean type
  -- Fix '!=' operation
  -- Fix output of del_object method
  -- Improved comparator algorithm for non integer values
  -- Added unit test cases
  -- Added functional api test cases
  -- Fixed static analysis errors
  -- Fixed cpd errors