Implement Bayesian Model Selection from WWW'22 paper

[IngoScholtes]

The task would be to implement, test, and evaluate the Bayesian model selection procedure described in the following paper:

Luka V. Petrovic and Ingo Scholtes. 2022. Learning the Markov Order of Paths in Graphs. In Proceedings of the ACM Web Conference 2022 (WWW '22). Association for Computing Machinery, New York, NY, USA, 1559–1569. https://doi.org/10.1145/3485447.3512091

Additionally, a comparison to the currently implemented (frequentist) model selection should be performed.