feat: add ndarray/base/eye

[LoayAhmed304]

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Resolves #{{TODO: add issue number}}.

Description

What is the purpose of this pull request?

This pull request:

• Implements the eye function for ndarrays, which creates a two-dimensional array with ones on a diagonal and zeros elsewhere.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• #{{TODO: add related issue number}}

Questions

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Other

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No.

Checklist

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• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

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• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
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• Research and understanding

Disclosure

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{{TODO: add disclosure if applicable}}

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Coverage Report

Package	Statements	Branches	Functions	Lines
ndarray/base/eye	$\color{green}187/187$ $\color{green}+100.00%$	$\color{green}20/20$ $\color{green}+100.00%$	$\color{green}2/2$ $\color{green}+100.00%$	$\color{green}187/187$ $\color{green}+100.00%$

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