[RFC]: Add C implementation for `@stdlib/math/base/special/acsc`

[gunjjoshi]

Description

This RFC proposes adding C implementation for @stdlib/math/base/special/acsc.

double stdlib_base_acsc( const double x );

Related Issues

Related issues #649

Questions

No.

Other

No.

Checklist

• I have read and understood the Code of Conduct.
• Searched for existing issues and pull requests.
• The issue name begins with RFC:.

[gunjjoshi]

I would love to work on this, along with other C implementations to unary base special math functions , once this gets merged.

[rajutkarsh07]

A PR has already been raised on the same issue

[gunjjoshi]

This is the duplicate of #859. I will be closing this.