feat: add blas/base/cscal

[aman-095]

Description

What is the purpose of this pull request?

This RFC proposes to add a routine to scale values of input complex single-precision floating-point vector by another complex single-precision floating-point constant vector as defined in BLAS Level 1 routines. Specifically adding @stdlib/blas/base/cscal is proposed.

Related Issues

Does this pull request have any related issues?
None.

Questions

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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

[aman-095]

@kgryte @Pranavchiku benchmarks for this routine are failing, don't know why NaN is coming in output. Can you please review it once?

[kgryte]

@aman-095 Thanks for working on this. Left some comments. This needs a fairly heavy refactor given the misunderstanding around ca.

[aman-095]

Sure @kgryte will work on this and resolve the issues.