CMA data logger now outputs to /outputs folder

- Add: CMA logger now outputs its stuff into /outputs folders. Also supports this folder for SubmitPBS in general (plot_output_dir)
Generator for CMA-ES FitExperiment, sampling everything

- Add: Generator for CMA-ES optimisation, varying Ratio and Sigmax. Samples from model as well, so should allow for Mixture model comparison. The space usage of this is going to be huge, be careful!