feat: add blas/base/igamax

[ShabiShett07]

none

Description

What is the purpose of this pull request?

This pull request:

• Adds the package blas/base/igamax

Related Issues

Does this pull request have any related issues?

This pull request:

• none

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

[ShabiShett07]

/stdlib update-copyright-years

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/base/igamax	$\color{green}268/268$ $\color{green}+100.00\%$	$\color{green}19/19$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}268/268$ $\color{green}+100.00\%$

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

[kgryte]

LGTM after clean-up.