asymmetric errors bars for light curve data

[GernotMaier]

Would like to ask for the possibility to add asymmetric errors bars for light curve data: flux_errn and flux_errp (similar to the sed format).

[cdeil]

Sure, go ahead. You can do that now. We have no schema or validators for LC yet, so I think at the moment any info you put into the ECSV files will be OK. I.e. at the moment we only have the human review at the pull request stage to make sure data entry for LC is sensible.