refactor: update implementation for blas/base/dsymv

[aman-095]

Progresses #2039.

Description

What is the purpose of this pull request?

This pull request:

• updates implementations based on current package standards for dsymv
• updates benchmarks, descriptions, docs, and examples for dsymv
• updates and adds test cases supporting ndarray implementation for dsymv

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses [RFC]: Add BLAS bindings and implementations for linear algebra (tracking issue) #2039

Questions

Any questions for reviewers of this pull request?

No.

Other

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No.

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

[kgryte]

@ShabiShett07 Now that #2843 is merged, would you mind updating this PR with similar changes? Cheers!