feat: add c and fortran implementation for `blas/base/zdscal`

[ShabiShett07]

Progresses #2039.

Description

What is the purpose of this pull request?

This pull request:

• add C and Fortran implementation for blas/base/zdscal

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses #2039

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.

• [x] Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/base/zdscal	$\color{green}376/376$ $\color{green}+100.00\%$	$\color{green}18/18$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}376/376$ $\color{green}+100.00\%$

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

[ShabiShett07]

/stdlib update-copyright-years

[aman-095]

Based on our discussion, make the necessary changes to maintain consistency.

[ShabiShett07]

@aman-095, made necessary changes as per our discussion