Sncosmo

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- Add 2MASS filters (338)

- Add ATLAS filters (336)

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- New zeropoint alias for improved SNANA compatibility (318)

- Add Roman filters (218, 322)

- Add the ability to a use SNANA co-add simlibs (247)

- Fix file paths for Windows users (324)

- Fix the builtins with poor spline options (203, 328, 329)

- Various improvments to code and repo managment

This release mostly involves modernizing the SNCosmo build system.

- Add Pan-STARRS1 bandpasses (212)
- Added support for wheels which should now be automatically uploaded to PyPI
for any new release (304).
- Fixed the Zenodo integration. New SNCosmo releases should now automatically
be archived to Zenodo.
- Moved citations to the new CITATION.cff format. GitHub and Zenodo will now
provide BibTeX entries that can be used to cite SNCosmo (302).
- Update to the emcee version 3 API. Now only compatible with emcee>=3.
- Migrate from Travis CI to GitHub Actions for continuous integration/tests
(293).
- Bugfixes:
- Fixed the implementation of the SALT3 error model (300).
- Fixed numpy type deprecations.
- Fixed the documentation for models (299).

* Add SALT3 model from Kenworthy et al. (2021) 296
* Various documentation fixes 295 297 298

- Add SUGAR model from Leget et al. (2020)
- Add support for the iminuit 2.0 API (291).
- Update tox to work with any version of Python 3.
- Bugfixes:
- Fix flatten_result bug due to API change (285).

* Add Swift UVOT bandpasses.
* Bugfixes:
* Fix segfaults in bicubic interpolation.