Emulating Stable32 error calculation with AllanTools

[DanHickstein]

I was trying to reproduce something similar to the error calculation from an modified allan deviation in Stable32. I wasn't able to immediately figure out how to do this using Allantools, but I found the get_better_ade function to be helpful: https://github.com/amv213/Stable32-AllanTools/blob/master/Stable87.py#L12

Obviously it's just wrapping a few allantools functions. So, maybe it would make sense to incorporate a similar function into allantools, or at least include something in the docs for those Stable32 users looking to achieve similar behavior.

PS: thanks for the great software!