Support for python 3.10?

[sjfleming]

Hello! I love this package, thanks for writing it.

I see that python 3.10 doesn't seem to be an option when installing from conda-forge. Is that right? Is there any plan to allow compatibility with python 3.10? Thanks.

[sjfleming]

As a note: I was able to successfully do this in python 3.10

conda install -c conda-forge gfortran
pip install ndd

and everything works fine.

I was just unable to directly do

conda install -c conda-forge ndd

with python 3.10.