CosmoSIS 3.0

[joezuntz]

Version 3 of cosmosis

• Allow more configuration of the run_cosmosis and run_postprocess functions, for use from Jupyter or other interactive notebooks.
• Add the cosmosis-campaign tool to manage suites of related runs.
• Allow output in astropy table format in interactive mode.
• Extensive changes to logging - we now exclusively use cosmosis.logs for anything that is printed during main sampling
• • The quiet option is deprecated in favour of more fine-grained logging control.
• Tidy up the output in general
• Update the setup script to avoid the deprecated distutils.
• Deal with various deprecation warnings
• Modify the format of the tables output by the "statistics" postprocessor so they can be read in astropy.
• Fix corner plots so you can put multiple chains on the same axes.
• Allow using MPI pools with general communicator objects - should make it possible to run under MPI in jupyter eventually.

[codecov-commenter]

Codecov Report

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #88 +/- ## ======================================= Coverage ? 59.93% ======================================= Files ? 115 Lines ? 11672 Branches ? 0 ======================================= Hits ? 6996 Misses ? 4676 Partials ? 0 ```

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