feat: add C implementation for constants/int32/max

[Pranavchiku]

Description

What is the purpose of this pull request?

This pull request adds C implementation for @stdlib/constants/int32/max

Related Issues

Does this pull request have any related issues?

Removes blocker for gcd, requested by @aman-095.

Questions

Any questions for reviewers of this pull request?

No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[Pranavchiku]

Can I put a ready to merge for my PR? XD

[kgryte]

LGTM. Thanks, @Pranavchiku.

[performant23]

Hi, just noticed that the C macros are not there for float16 and some integer and unsigned integer constants in @stdlib/constants. Would these be needed for any present/future C implementations? If so, happy to write some macros!

[kgryte]

@performant23 I think the most high priority constants would be for float32. See https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float32/half-pi for an example. Feel free to submit PRs for constants which seem most relevant from float64 (e.g., apery, catalan, etc, are not high priority).