Refactor main loop of tranquilo

[janosg]

• Redefine states such that trustregion information and model information of one state belong to same iteration
• Add a success history for stagnation detection
• Wrap criterion to do parallel evaluation, post processing and adding to history automatically
• Add separate step for deciding how many points to sample
• Add weighting to fit methods
• Add weight calculation as separate step
• Switch criterion of optimal sampler to fekete if we add just one point (optionally)
• Add nan handling

[codecov]

Codecov Report

Merging #397 (0446713) into main (0606165) will decrease coverage by 0.04%.
The diff coverage is 88.50%.

@@            Coverage Diff             @@
##             main     #397      +/-   ##
==========================================
- Coverage   92.87%   92.83%   -0.05%     
==========================================
  Files         212      220       +8     
  Lines       17111    17254     +143     
==========================================
+ Hits        15892    16017     +125     
- Misses       1219     1237      +18     

Impacted Files	Coverage Δ
tests/optimization/tranquilo/test_sample_points.py	100.00% <ø> (ø)
src/estimagic/optimization/tranquilo/fit_models.py	82.35% <40.00%> (-1.39%)	⬇️
.../estimagic/optimization/tranquilo/filter_points.py	77.64% <50.00%> (-2.60%)	⬇️
.../estimagic/optimization/tranquilo/sample_points.py	86.01% <60.00%> (-5.78%)	⬇️
...c/estimagic/optimization/tranquilo/count_points.py	76.92% <76.92%> (ø)
src/estimagic/optimization/tranquilo/weighting.py	81.81% <81.81%> (ø)
...stimagic/optimization/tranquilo/handle_infinity.py	90.47% <90.47%> (ø)
src/estimagic/optimization/subsolvers/gqtpar.py	90.72% <100.00%> (+0.06%)	⬆️
src/estimagic/optimization/tranquilo/geometry.py	96.87% <100.00%> (ø)
...timagic/optimization/tranquilo/solve_subproblem.py	88.60% <100.00%> (+0.14%)	⬆️
... and 13 more

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[timmens]

Great PR, approved. I only have a few clarifying questions.