Change Atoms.get_all_distance to neighborlist

[Nanco-L]

In the code

SIMPLE-NN_v2/test_sf/test_sf.py

Line 149 in 14b4c14

self.atom_dist= atoms.get_all_distances(mic = True)

Developer use Atoms.get_all_distance function which calculates the distance between one atom and all other atoms.
This function can be useful to obtain all the atom pairs in the structure but we need to add additional code to remove the atom pairs with the pair distance longer than cutoff radius.
Instead of using the function, I recommend using ase.neighborlist.
You can find the documentation of it in https://wiki.fysik.dtu.dk/ase/ase/neighborlist.html?highlight=neighborlist#module-ase.neighborlist