[RFC]: add `math/base/special/asinf`

[gunjjoshi]

Description

This RFC proposes adding math/base/special/asinf, which would be a single precision implementation for math/base/special/asin.

float stdlib_base_asinf( const float 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 like to work on this.

[gunjjoshi]

Also, @kgryte, we will need PI02F for this. But as of now, the single precision float32 constant for pi/2 is not implemented. So, should I first implement that, or should I directly use hardcoded value for that ?

[kgryte]

@gunjjoshi Thanks for opening this. This sounds good.

Re: pi/2. In a separate PR, can you add @stdlib/constants/float32/half-pi? Should be done similarly to https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float32/sqrt-eps and https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float64/half-pi (the float64 equivalent).