Compatibility with pymatgen #288
Description
Hello abipy developers.
abipy compatible with pymathgen<=2023.9.10 and https://github.com/abinit/abipy/blob/develop/setup.py#L158 but...
Compatibility breacking by rename get_ax3d_fig_plt->get_ax3d_fig and get_ax_fig_plt->get_ax_fig plus no longer return plt
https://pymatgen.org/CHANGES.html#v2023925
Best Vladimir.