INTERFACE/BUG: initializing Cutoffs with array
Description/Background
I think we should extend the functionality for initializing Cutoffs objects, just to make life a bit easier.
Currently neither of these work
from hiphive.cluster_filter import Cutoffs
# with list
cutoffs = Cutoffs([6.0, 6.0])
# with np.array
cutoffs = Cutoffs(np.array([6.0, 6.0]))