feat: add toReversed method to array/fixed endian factory

[jangnathan]

Resolves #3159 .

Description

What is the purpose of this pull request?

This pull request:

• Adds toReversed method to main.js
• Adds tests for toReversed method in new file test.to_reversed.js
• Adds two benchmark files for toReversed method, one measuring baseline performance and the other measuring performance as array length increases
• Added documentation and updated README.md file for toReversed method

Related Issues

Does this pull request have any related issues?
No

This pull request:

• resolves [RFC]: add toReversed method to array/fixed-endian-factory #3159

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.

Reversing a typed array using:

	for ( i = 0; i < len; i++ ) {
		v = buf[ GETTER ]( ( ( len - 1 ) * BYTES_PER_ELEMENT ) - ( i * BYTES_PER_ELEMENT ), this._isLE );
		obuf[ SETTER ]( i * BYTES_PER_ELEMENT, v, this._isLE );
	}

seems to perform faster (around ≈7-10 ms) in benchmarking and test results than:

	for ( i = 0; i < len; i++ ) {
		obuf[ i ] = buf[ len - i - 1 ];
	}

Checklist

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

• Read, understood, and followed the contributing guidelines.

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Coverage Report

Package	Statements	Branches	Functions	Lines
array/fixed-endian-factory	$\color{red}940/1197$ $\color{green}+78.53\%$	$\color{red}80/89$ $\color{green}+89.89\%$	$\color{red}16/27$ $\color{green}+59.26\%$	$\color{red}940/1197$ $\color{green}+78.53\%$

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