IOOS 1.2 suggest contributor_* to be csv delimited which is not compatible with cioos name fomat

[JessyBarrette]

CIOOS YAML format output contact names and surnames as: {Name}, {Surname} with the comma present inside the name. This makes it tricky to be able to respect the IOOS 1.2 csv delimited requirement for the contributors names.

https://ioos.github.io/ioos-metadata/ioos-metadata-profile-v1-2.html#attribution

I wonder if we could keep Name and Surname separated in the YAML or assume that the comma is a separator for surname and name. We could then convert {name}, {surname} -> {surname} {name}