Output current orbital angular momentum direction in original x-y-z coordinates

[ilyamandel]

The solution to #1243 provides the velocity in the original pre-first SN orbital plane coordinates -- but we also need the orbit in the same coordinate system in order to compare the alignment between the two.

[reinhold-willcox]

Note to myself: we already output the inclination vector components, but we need to add in the eccentricity (LRL) vector components as well.