[csvw] a plugin for writing csvw metadata from mcf

[pvgenuchten]

potential new feature-idea

the csvw is a metadata model aiming to describe columns of a tabular dataset (CSV), so that the data in that dataset can be read by rdf engines. the format defines a specific json structure

part of this metadata is available in mcf in the attributes section.

the csvw standard allows to capture additional dataset metadata elements as dublin core terms, which allows to capture additional mcf elements

the csvw document typically references the tabular dataset it describes, this information can be extracted from the mcf-distributions

csvw allows to describe multiple files in a single csvw, however the current attribute section in mcf allows only a single set of attributes

the csvwlib library can be used to validate the generated csvw (and convert the table+metadata to rdf)