Create separate file to run Metropolis-Hastings using objective function in RonModelPipelineJuly11_2024.m

[alexpopinga]

MH is currently embedded inside the computeLikelihood function of SSIT.m

[dmitrisvetlov]

I have created a standalone MetropolisHastingsRunner on the SequentialExperimentDesign branch, but it only contains the M-H code used for that workflow. It should at least be generalizable to our other existing workflows where M-H is performed.