Explore other statistical tests for numerical columns

[fealho]

Currently SDMetrics only provides the two samples KS test to compare numerical values. We should consider adding other tests as an optional parameter, so the user can choose a test which better matches their understanding of their data.

Additionally, we should explore substituting the KS test with the Anderson-Darling test as the default, since it is a more powerful test overall. Such change would require experimentation to show that the AD test indeed outperforms the KS test in most use cases.

[mahmadza]

I found these links supporting the notion that AD test outperform KS test:

• https://www.researchgate.net/publication/276918573_Comparing_distributions_the_two-sample_Anderson-Darling_test_as_an_alternative_to_the_Kolmogorov-Smirnov_test
• https://asaip.psu.edu/articles/beware-the-kolmogorov-smirnov-test/