feat: update JavaScript implementation and add C ndarray implementation for blas/base/scasum

[aman-095]

Progresses #2039.

Description

What is the purpose of this pull request?

This pull request:

• updates existing Js implementation to support negative strides for scasum.
• adds C ndarray implementation for scasum.

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

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No.

Other

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No.

Checklist

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• Read, understood, and followed the contributing guidelines.

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