feat: add C / Fortran implementation for blas/base/drotg

[aman-095]

Description

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This PR proposes adding native C / Fortran implementations for @stdlib/blas/base/drotg

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[aman-095]

Hey, @kgryte, I tried changing the Fortran implementation based on Lapack but am still facing the same issue. The C implementation works fine, but I believe there is an issue with the Fortran implementation for the test. In the test.native.js file, a few of the tests are failing, and the benchmarks for the Fortran code are also throwing errors.