feat: add @stdlib/blas/base/drotg

[Pranavchiku]

Fixes #279.

Checklist

• Add readme.md
• repl.txt
• types
• package.json
• lib
• examples
• benchmark
• test

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@kgryte

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Reference drotg implementation: netlib

[Pranavchiku]

I guess, I have a lint error in test.assign.js and test.main.js, that was some mixed space and tab indents, I was unable to fix it hence used --no-verify commit, will polish it once all files get in this PR.

[Pranavchiku]

All tests and benchmarks cleared, this PR can have a review.

[kgryte]

@Pranavchiku Would you be willing to update this PR according to the changes made in commit 36b75b3?

[kgryte]

@Pranavchiku When getting mixed tabs and spaces lint errors, in Sublime Text, I simply select all text and then use built in IDE tools to convert indentation from spaces to tabs (or vice versa depending on the file type). In short, prefer resolving this locally rather than using --no-verify.

[kgryte]

@Pranavchiku This mostly looks good. The tests need some refactoring.

[Pranavchiku]

Updated tests, all tests pass and benchmarks cleared, this PR can have a final review.

[kgryte]

LGTM. Thanks, @Pranavchiku!