Spinners do not have an accessible name

[tulup-conner]

Describe the bug
Spinners are an <svg> with role="status", but they do not have an accessible label.

To Reproduce
Steps to reproduce the behavior:

1. Create a <Spinner />
2. Observe that screen reader skips over it, or notifies of a status, but with no explanation as to what it is

Expected behavior
Examples should contain an accessible name.

@rluders @bacali95 Users might want to provide a separate element rather than label the Spinner directly, which means there ideally would be flexibility between assigning aria-label and aria-labelledby. So I'm hesitant to say add a prop here, and instead I think it would be best to accept all HTML attributes and add accessible names to the examples. Thoughts?

Screenshots
n/a

Additional context
I've tried this on Apple VoiceOver so far.