Numpy QuadDType: Quadruple Precision for Everyone

[pllim]

https://labs.quansight.org/blog/numpy-quaddtype-blog

When this stabilizes, is this a candidate to replace bundled libqd? 🤔

[mcara]

Let's ping @perrygreenfield

[perrygreenfield]

Since some of spherical_geometry is written in C, it doesn't seem to address that need, or am I missing a ping?

[pllim]

Since some of spherical_geometry is written in C, it doesn't seem to address that need

But does it have to be in C?

[perrygreenfield]

I believe that some of the Python algorithms were too slow. But @mcara would have a more certain answer about that.