Added derivative and Hessian for Levy test function

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (54273b0) 91.43% compared to head (bf52279) 91.48%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #449 +/- ## ========================================== + Coverage 91.43% 91.48% +0.05% ========================================== Files 162 162 Lines 21482 21631 +149 ========================================== + Hits 19641 19790 +149 Misses 1841 1841 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.