feat: add blas/base/sspr2

[aman-095]

Progresses #2039.

Description

What is the purpose of this pull request?

This RFC proposes to add a routine to perform the symmetric rank 2 operation A = α*x*y^T + α*y*x^T + A where α is a scalar, x and y are N element vector, and A is an N by N symmetric matrix supplied in packed form as defined in BLAS Level 2 routines. Specifically adding @stdlib/blas/base/sspr2 is proposed.

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses [RFC]: Add BLAS bindings and implementations for linear algebra (tracking issue) #2039

Questions

Any questions for reviewers of this pull request?

No.

Other

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No.

Checklist

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• Read, understood, and followed the contributing guidelines.

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