problems: Allow correlated arguments in random problem generators

Implement MinWeightVertexCoverPerturber

Implement UnitCommitmentPerturber

Implement TravelingSalesmanPerturber

Implement SetPackPerturber and SetCoverPerturber

Implement PMedianPerturber

Implement MultiKnapsackPerturber

Implement MaxCutPerturber

Implement BinPackPerturber

stab: Implement MaxWeightStableSetPerturber; update tests and docs

BasicCollector: Always use p_umap, so that progress bar is visible

Fix failing tests

docs: Minor updates

uc: Add quadratic terms

Add maxcut to problems.ipynb