Opennurbs pre-builds for github action

Keep in mind that this IS the file format for Rhino. So it’s critical that we do this, and do this correctly.

We’ve already had discussions with Microsoft about vcpkg and openNURBS. We’re just not ready to participate at this time.

https://mcneel.myjetbrains.com/youtrack/issue/RH-66553/Add-vcpkg-support-to-openNURBS

– Dale