feat: add C implementation for stats/base/dists/betaprime/logpdf

[Neerajpathak07]

Resolves #3440

Description

What is the purpose of this pull request?

This pull request:

• adds C implementation for stats/base/dists/betaprime/logpdf

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves [RFC]: Add C implementation for @stdlib/stats/base/dists/betaprime/logpdf #3440

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

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

• Read, understood, and followed the contributing guidelines

---

@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/betaprime/logpdf	$\color{green}342/342$ $\color{green}+100.00\%$	$\color{green}25/25$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}342/342$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[Neerajpathak07]

/stdlib update-copyright-years

[Neerajpathak07]

I have made the change although the main.js file returns ~-0.811 for the same example. So, I do think the return value some where is incorrect. Let me know if I am thinking straight.