Convert visibilities
vis-convert reads in visibilities and writes them out, performing whatever
transformations were requested on the way (e.g. ignore autos, average to a
particular time resolution, flag some tiles, etc.).
Autos control: Auto-correlations are not read by default. Use --autos to include them when reading, and they will be written to the output. If --autos is not used (default), autos are not read and not written.