Rational surface in q profile plot

[ssskkkky]

That would be great to plot rational surface in the q profile plot. Or plot q profile in the mode decomposition plot in a snapshot.

[12ff54e]

Adding rational surface to q profile or any other equilirium profile sounds nice, but chosing which rational surfaces then? Use those from n_modes and m_modes from gtc.in? Or leave the decision to the user (maybe adding a text input for them to select which m/n surface should be shown)?