Compute sine

Compute the sine of x where x is in degrees.

Package: `@stdlib/math/base/special/sind`
Alias: `base.sind`

For a reference implementation, see [this link](https://github.com/JuliaLang/julia/blob/c3f59178b1c9c2b0a9758ac4f92b3445e933e405/base/special/trig.jl#L478).

**Guide:**
- Read and understood the [Code of Conduct](https://github.com/stdlib-js/stdlib/blob/develop/CODE_OF_CONDUCT.md).
Searched for existing issues and pull requests.
If this is a general question, searched the [FAQ](https://github.com/stdlib-js/stdlib/blob/develop/FAQ.md) for an existing answer.
If this is a feature request, the issue name begins with RFC: .

Start with the @stdlib/math/base/special/sind package entry point and compare the intended degree-based behavior with the linked Julia reference implementation. The issue does not name implementation files or tests, so identify the package's existing conventions and validation before defining completion as a working sine function for degree inputs.

Written by the indexing model from the issue text.