plot hopping strength about pybinding HOT 1 CLOSED

The plotting of the 'hopping strength' is a hard question. This could be a map in the x/y-space, but then you should also know that there can be multiple orbitals at the same position. As such, this functionality would already break with multiple-orbital models like advanced models for graphene or the models for TMDs. Also, there could be on-site hopping between the same positions of the system. It would be

Though, we will look into adding this kind of functionality one way or another, there is can be useful to see how the dependence of the model changes with space.

from pybinding.