v1.0 tasks

[andrew-saydjari]

• on-the-fly convolution with the LSF (need to think about how to do the dd model in this regime)
• run down NaN spectra cause (other than ap1Ds all NaNs or thrpt cut)
• build starLine priors taking draws from synspec (instead of turbo20, just a simple rebuild). Or, build the starLine grid independent of DR17 distributions (probably more ideal)
• building starCont could sample actual stellar continuua from Korg rather than making the Teff black body approximation.
• switch RV barycenter correction to barycorrpy instead of astropy