Extract electronic properties from HoppingMatrix

[JosePizarro3]

I will add the diagonalization of the tight-binding Hamiltonian defined by HoppingMatrix in its normalize functions. We can extract a bunch of electronic properties in a more interoperable way.

@mohammadnakhaee once I have something, do you want to review it? We will finally use the database to diagonalize the Hamiltonian and get the properties instead of having to parse them.