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:Date: September 18, 2023
* Emulation methods:
* Rename ``PCGPwMatComp`` to ``PCGPwImpute``.
* Include a new emulation method ``indGP``.
* Include a new emulation method ``PCGPR``, which requires ``scikit-learn``.
* Include a new emulation method ``PCSK``.
* Include a new emulation method ``nuclear-ROSE``, for integration with Python package ``nuclear-rose``.
* Remove ``GPy`` from the list of emulation methods.
* Calibration methods:
* Modify ``directbayes`` to admit Python package ``ptemcee`` as sampler.
* Utilities methods:
* Modify ``metropolis_hastings`` to allow control of console output.
* Include a new sampling method ``PTLMC``.
* Include a new sampling method ``PTMC``, using Python package ``ptemcee``.
* Test suite:
* Remove the use of `python setup.py test` for unit testing.