Sparse hessian with Symbolics.jl

[github-actions[bot]]

Package name	latest	stable
CaNNOLeS.jl
DCISolver.jl
DerivativeFreeSolvers.jl
JSOSolvers.jl
NLPModelsIpopt.jl
OptimizationProblems.jl
Percival.jl
QuadraticModels.jl
SolverBenchmark.jl
SolverTools.jl

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.13 :tada:

Comparison is base (b44d583) 98.64% compared to head (40a541b) 98.77%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #126 +/- ## ========================================== + Coverage 98.64% 98.77% +0.13% ========================================== Files 8 9 +1 Lines 960 1064 +104 ========================================== + Hits 947 1051 +104 Misses 13 13 ``` | [Impacted Files](https://codecov.io/gh/JuliaSmoothOptimizers/ADNLPModels.jl/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers) | Coverage Δ | | |---|---|---| | [src/ADNLPModels.jl](https://codecov.io/gh/JuliaSmoothOptimizers/ADNLPModels.jl/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL0FETkxQTW9kZWxzLmps) | `100.00% <ø> (ø)` | | | [src/sparse\_hessian.jl](https://codecov.io/gh/JuliaSmoothOptimizers/ADNLPModels.jl/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL3NwYXJzZV9oZXNzaWFuLmps) | `100.00% <100.00%> (ø)` | | ... and [7 files with indirect coverage changes](https://codecov.io/gh/JuliaSmoothOptimizers/ADNLPModels.jl/pull/126/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers) Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers)

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[tmigot]

Ok, so I didn't check the PR in the right order, some comments were valid for https://github.com/JuliaSmoothOptimizers/ADNLPModels.jl/pull/125/files