feat: add accessor protocol and refactor stats/base/nanmskmax

[rahulptl165]

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description: Results of running static analysis checks when committing changes. report:

• task: lint_filenames status: passed
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Resolves #5662 .

Description

What is the purpose of this pull request?

This pull request:

• Adds new files accessors.js.
• Modified existing nanmskmax.js.
• Modified existing ndarray.js.
• Modified readme.md, benchmark, docs/types, docs/repl.txt, examples, tests files.

Important

function nanmskmax( N, x, strideX, mask, strideMask ) {
	return ndarray( N, x, strideX, stride2offset( N, strideX ), mask, strideMask, stride2offset( N, strideMask ) );
}

Instead of above code in nanmskmax.js and tests files, I have used below code due to eslint warnings about maximum character allowed in a single line.

function nanmskmax( N, x, strideX, mask, strideMask ) {
	var offsetMask = stride2offset( N, strideMask );
	var offsetX = stride2offset( N, strideX );
	return ndarray( N, x, strideX, offsetX, mask, strideMask, offsetMask );
}

If we should not bother about warnings, request changes in review, i will modify it.

Related Issues

This pull request:

• resolves [RFC]: refactor and add protocol support to stats/base/nanmskmax #5662

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.

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@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/nanmskmax	$\color{green}328/328$ $\color{green}+100.00\%$	$\color{green}42/42$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}328/328$ $\color{green}+100.00\%$

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

[aayush0325]

kindly also adhere to the file structure that we're trying to follow, your lib directory should only contain a main.js, ndarray.js, accessors.js and index.js, see #6248 for reference

[rahulptl165]

Hi @aayush0325, I have addressed requested changes. pls review it.

[gururaj1512]

/stdlib merge

[kgryte]

LGTM