Couple ODINN's 2D SIA in OGGM

[JordiBolibar]

Originally suggested by Larissa. A more ambitious next step would be to re-use the 2D SIA from ODINN in OGGM as an entity function.

This would require as well calling ODINN from Python using JuliaCall or something similar. The MB model would have to be passed (with all the parameters), but for the rest it should be rather straightforward. Since we are using gdirs inside ODINN, we could directly store the results of the simulations in each gdir folder, and then retrieve those directly from OGGM in Python.