Tests and start restructuring sequential training

.coverage

.coverage.DESKTOP-ATMEKSV.21516.XyAVyWNx

.coverage.DESKTOP-ATMEKSV.32204.XCbTXmgx

.coverage.DESKTOP-ATMEKSV.36684.XKrSwPEx

Outputs_Bayes_None_Calib/emcee_sampler.h5

examples/analytical-function/test_analytical_function.py

src/bayesvalidrox/bayes_inference/discrepancy.py

src/bayesvalidrox/pylink/pylink.py

src/bayesvalidrox/surrogate_models/engine.py

src/bayesvalidrox/surrogate_models/exp_designs.py

src/bayesvalidrox/surrogate_models/surrogate_models.py

tests/MCrefs_MeanStd.csv

tests/MeasuredData.csv

tests/MeasuredData_Valid.csv

tests/SBeam_Deflection.tpl.inp

tests/test_Discrepancy.py

tests/test_ExpDesign.py

tests/test_MetaModel.py

tests/test_engine.py

tests/test_model/PosteriorGeneration/Posterior.csv