Add optional `return_components` parameter to irradiance.haydavies

[spaneja]

Update the Hay Davies sky transposition model to return individual components by user request.

• [ ] Closes #xxxx
• [x] I am familiar with the contributing guidelines
• [x] Tests added
• [x] Updates entries in docs/sphinx/source/reference for API changes.
• [x] Adds description and name entries in the appropriate "what's new" file in docs/sphinx/source/whatsnew for all changes. Includes link to the GitHub Issue with :issue:`num` or this Pull Request with :pull:`num`. Includes contributor name and/or GitHub username (link with :ghuser:`user`).
• [x] New code is fully documented. Includes numpydoc compliant docstrings, examples, and comments where necessary.
• [x] Pull request is nearly complete and ready for detailed review.
• [x] Maintainer: Appropriate GitHub Labels (including remote-data) and Milestone are assigned to the Pull Request and linked Issue.

[kandersolar]

Thanks @spaneja this looks like a great start. In addition to fixing the stickler/pep8 stuff, can you make a note of the new functionality and add your name to the contributors list in the 0.9.4 what's new file (docs/sphinx/source/whatsnew/v0.9.4.rst)?

I'll take a closer look once the stickler issues are resolved, but one thing I notice now is that the (always zero) horizon component as mentioned in https://github.com/pvlib/pvlib-python/issues/1553#issuecomment-1270214826 is missing. Thanks!

[kandersolar]

Hearing no objections, I'll go ahead and merge this. Thanks again @spaneja