Changed trait constraints to solve.jl for calculation of gradients, hessians and more. #651

[ParasPuneetSingh]

Checklist

• [ ] Appropriate tests were added
• [ ] Any code changes were done in a way that does not break public API
• [ ] All documentation related to code changes were updated
• [ ] The new code follows the contributor guidelines, in particular the SciML Style Guide and COLPRAC.
• [ ] Any new documentation only uses public API

Additional context

Add any other context about the problem here.

[codecov[bot]]

Codecov Report

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

Project coverage is 34.78%. Comparing base (ae4f9a8) to head (caafb86). Report is 27 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #659 +/- ## ========================================== + Coverage 31.29% 34.78% +3.48% ========================================== Files 55 55 Lines 4358 4905 +547 ========================================== + Hits 1364 1706 +342 - Misses 2994 3199 +205 ```

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