#294 Support CatCMAwM

[jpfeil]

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Tip

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Motivation

[Hamano et al. 2025] shows that CatCMAwM outperforms CMA-ES with Margin in mixed-integer scenarios.

Description of the changes

Added CatCmawmSampler

TODO List towards PR Merge

Please remove this section if this PR is not an addition of a new package.
Otherwise, please check the following TODO list:

• Copy ./template/ to create your package
• Replace <COPYRIGHT HOLDER> in LICENSE of your package with your name
• Fill out README.md in your package
• Add import statements of your function or class names to be used in __init__.py
• (Optional) Add from __future__ import annotations at the head of any Python files that include typing to support older Python versions
• Apply the formatter based on the tips in README.md
• Check whether your module works as intended based on the tips in README.md

Resolves #294

[y0z]

@c-bata
Could you review this PR?

[c-bata]

Thank you for your pull request. I left some minor comments.

[jpfeil]

Thanks, @c-bata. I addressed your comments.

[jpfeil]

Addressed comments.

[c-bata]

LGTM. Thank you for the update.