Is this on anyone's radar? I know it's a simple item to add directly

As analyzing biological data with BioFSharp involves a lot of scripting, optional pretty printers help a lot when looking at results directly in the fsi window. This should be especially easy to add for parsing libraries that can already write the correct file format. A basic pretty printer for biocollections is already impelemented.
Here are some formats from the top of my head, feel free to add