EDR latent catalog

[changhoonhahn]

Construct latent variable catalog for the EDR SpenderQ reconstruction.

[changhoonhahn]

Outliers detected by initial latent variable catalog:

The spectra reveal some obvious incorrect redshifts. However, Paul Martini asked an interesting question of whether we can find outliers with velocity shifts from astrophysics (e.g. https://arxiv.org/abs/1602.03894).

@theabbybault @SGontcho Can we try to look for these?