add publication-ready tables to S5 and S6 output

[lkreidberg]

Idea for additional output from Stage 6: latex tables that are ready for publication.

The EXOFAST code has a nice example of this - see Fig 5 of https://arxiv.org/pdf/1906.03276.pdf

[taylorbell57]

I think this is mostly taken care of (tables are made for all wavelength dependent variables), but we should also add a table to Stage 5 for any wavelength independent variables or variables fitted only to the white lightcurve