Create tsunamitutorial example for simple use of UMBRidge model as function

examples/umbridge_tsunamitutorial/test_umbridge.py

examples/umbridge_tsunamitutorial/tsunami_model.py

examples/umbridge_tsunamitutorial/tsunami_model1.py

src/bayesvalidrox/bayes_inference/bayes_model_comparison.py

src/tsunami.pk1