Starsim

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- Update ``StaticNet`` with defaults and correct argument passing
- *GitHub info*: PR `339 <https://github.com/amath-idm/stisim/pull/339>`_

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- Make random number streams independent for SIR
- *GitHub info*: PR `307 <https://github.com/amath-idm/stisim/pull/307>`_

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- Improve logic for making new cases with multi-RNG
- *GitHub info*: PR `337 <https://github.com/amath-idm/stisim/pull/337>`_

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- Improve ``sim.summarize()``
- Improve ``sim.plot()``
- Improve SIR model defaults
- *GitHub info*: PR `320 <https://github.com/amath-idm/stisim/pull/320>`_

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- Removes ``STI`` class
- Changes default death rate from units of per person to per thousand people
- Allows ``ss.Sim(demographics=True)`` to enable births and deaths
- Fix pickling of ``State`` objects
- Rename ``networks.py`` to ``network.py``, and fix HIV mortality
- *GitHub info*: PRs `305 <https://github.com/amath-idm/stisim/pull/305>`_, `308 <https://github.com/amath-idm/stisim/pull/308>`_, `317 <https://github.com/amath-idm/stisim/pull/317>`_

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- Add the ``Samples`` class
- *GitHub info*: PR `311 <https://github.com/amath-idm/stisim/pull/311>`_