Overhaul radial distance utility

[connoramoreno]

Overhauls the radial distance utility. Changes include:

• Leveraging recent updates to the magnet workflow
• Code restructuring
• General code improvements
• Addition of a function to handle all radial distance utility functionality, removing the need to call several functions when using the utility
• Addition of a function to enforce helical symmetry in a matrix whose rows and columns correspond to regularly spaced angular arrays
• Addition of a function to smooth a matrix using Gaussian filtering without increasing the value of matrix elements

[connoramoreno]

I'm beginning to wonder if it might be worth converting this script to an object-oriented version

[gonuke]

I'm really impressed by the application of best practices here @connoramoreno - nice cleanup! I have a few more comments to continue the journey...

[gonuke]

A little final polish...

[gonuke]

One more comment for posterity

[gonuke]

Thanks for these updates @connoramoreno