Example 'only-model' created based on the 'analytical-function' to test Inference without a surrogate.
Currently it's not running without building the surrogate - do tests first and see if able to refracture?

[surrogate][SeqDesign] added new feature to compare the likelihood distribution with that of the provided refrence.

[surrogate,bayes,tests] modified Fetzer test and modified the likelihood caluclations for both surrogate and bayes for multiple outputs.