GGen candidate CIFs for Co-Fe-Hf

GGen ran 890 trials across 89 Co-Fe-Hf stoichiometries in 17.6 min, keeping 839 relaxed structures. 42 of them landed within 150 meV/atom of the convex hull, 41 of which the database had not seen before. The leading generated candidate is CoFe15 in Cmmm (#65), which sits on the hull (known).