Parse NL at MOI level

[blegat]

Second step of https://github.com/JuliaSmoothOptimizers/NLPModelsJuMP.jl/issues/152

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.82 :tada:

Comparison is base (de1bddb) 92.05% compared to head (8833373) 92.88%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #155 +/- ## ========================================== + Coverage 92.05% 92.88% +0.82% ========================================== Files 4 4 Lines 554 548 -6 ========================================== - Hits 510 509 -1 + Misses 44 39 -5 ``` | [Impacted Files](https://app.codecov.io/gh/JuliaSmoothOptimizers/NLPModelsJuMP.jl/pull/155?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers) | Coverage Δ | | |---|---|---| | [src/moi\_nlp\_model.jl](https://app.codecov.io/gh/JuliaSmoothOptimizers/NLPModelsJuMP.jl/pull/155?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL21vaV9ubHBfbW9kZWwuamw=) | `100.00% <100.00%> (ø)` | | | [src/moi\_nls\_model.jl](https://app.codecov.io/gh/JuliaSmoothOptimizers/NLPModelsJuMP.jl/pull/155?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL21vaV9ubHNfbW9kZWwuamw=) | `87.15% <100.00%> (+0.14%)` | :arrow_up: | | [src/utils.jl](https://app.codecov.io/gh/JuliaSmoothOptimizers/NLPModelsJuMP.jl/pull/155?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaSmoothOptimizers#diff-c3JjL3V0aWxzLmps) | `93.52% <100.00%> (+1.69%)` | :arrow_up: |

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[github-actions[bot]]

Package name	latest	stable
NLSProblems.jl
OptimizationProblems.jl

[amontoison]

Thanks @blegat !!