refactor: update blas/ext/base/ssortins to follow current project conventions

[aayush0325]

Resolves #1538 .

Description

What is the purpose of this pull request?

This pull request:

• Refactors blas/ext/base/ssortins to follow current project conventions.
• Added addons in C instead of C++
• Updated examples and style as per the given commits in the issue [RFC]: refactor blas/ext/base/ssortins to follow current project conventions #1538 .
• d66d80c (saxpy), 3c82fe7 (cswap), and 5b15c96 (dasum).

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves [RFC]: refactor blas/ext/base/ssortins to follow current project conventions #1538

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.

• Open to reviews and willing to work on this if something else was expected from this PR!

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

[aayush0325]

@Planeshifter ready for initial review!

[aayush0325]

this branch has a lot of garbage commits which i made while trying to figure things out, i can raise a new, clean PR from another branch if needed.