CCO enhanced to support GENESYS RDF generation use cases.

Dublin Core Meta-data Initiative vocabularies.

module.

vernacular crop names... The CropDescriptorLoader now seems to be
completely functional(?).

crops, thus allowing complete automation (driven by RDF) of descriptor
loading.  src/test/resources now has updated SPARQL query and sample RDF
data files.

descriptions (following the DarwinCore cue)

to a subtle JSON artifact which introduced escaped quotes ('\"') into
language maps when language sub-maps were converted to strings
(toString), added to an Json object, then the total Json object
converted (again) to a string (toString a second time...).

Resolved the issue by only converting to strings (with toString) once...

Crop updates now work (again) with non-English languages throughout, in
a manner that the web interface now updates crop-specific labels.

One last enhancement being contemplated is to perhaps introduce RDF
triplet statements to encode Crop taxonomy information including foreign
language names.

Note that perhaps there needs to be a robust way of updating the
database for additional non-English language strings after the initial
loading of the database with the original (meta-)data.

Property Categories ("ParameterCategory") from
http://data.bioversityinternational.org.