Additional origins not saved by scriptgen

[hunse]

If I create an ensemble and add an origin that computes a function (I was testing with a quadratic) and then save with scriptgen, this origin is not saved. Furthermore, if I connect this origin to another ensemble, neither the origin nor the projection is saved.

[hunse]

I talked to @e2crawfo about this, and apparently only user-defined functions work. Other types of functions (polynomial, etc.) were expected to be removed; this needs to be done.