feat: add math/base/special/cfloorf

[gururaj1512]

Resolves #649

Description

What is the purpose of this pull request?

• adds math/base/special/cfloorf, which would be the single-precision equivalent for math/base/special/cfloor.

stdlib_complex64_t stdlib_base_cfloorf( const stdlib_complex64_t z );

Related Issues

Does this pull request have any related issues?

This pull request:

• Progresses: [RFC]: Add C implementations to base special math functions (tracking issue) #649

Questions

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No.

Other

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No.

Checklist

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• Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[Planeshifter]

Closing since #3058 was merged. Thanks much for all your efforts and contributions to stdlib!