Further refinement of moment interaction n_points, n_spacing when max_comp truncates M/N diagram?

[robbievanleeuwen]

Further refinement of moment interaction n_points, n_spacing when max_comp truncates M/N diagram?

[Agent6-6-6]

@robbievanleeuwen, noted as well just now that the docstring in AS3600.moment_interaction_diagram also needs to be updated as it does not reference the updated limits or control point changes that were made. For example, docstring still references lower limit as being zero curvature tension, but you've redefined it as ("N", 0.0), similarly for the control points reference kappa0, but this is not included any more.

[robbievanleeuwen]

Thanks for this, I think this ties in closely with the third task in #68 so hopefully I can fix this as well!