BUG - GLOWS average spin axis statistics incorrect

[tmplummer]

Description of the issue

Marek opened a PR fixing this bug and Tim helped with implementation/testing.

The bug was that the scipy circmean and circstd methods require inputs to be in radians. We were passing in degrees.

Steps to reproduce the issue

No response

Expected vs Actual behavior

No response

Code Snippet (If applicable)

Code

Additional notes, affected areas, and suggested fixes

No response