BMC only runs the BME part of BayesInf, split JA into its own function, removed redundant function in MCMC, added to function diagrams

Some simple fixes for various test, start on testing BayesInf, output directory as changeable parameter in BayesInf

In this scope the multiprocessing for running the models does not seem to work correctly anymore

Added tests for Inputs and started on those for ExpDesign.
Regarding the second there are some open questions noted in issue #32