Feature: Add new AgroPortal model migration script

This PR adds a script that do the following migration actions

Transform all the URI attributes from String to URIs
Reset to nil the validity date if invalid (inferior to creation date)
Set curatedOn date to creationDate if invalid
Add ontologies views to the hasPart attribute if invalid
Set URI = submission.id if URI is null
Reject URI from the identifier values if found.
Transform designedForOntologyTask string to URI by adding the namespace http://omv.ontoware.org/2005/05/ontology#
Set modificationDate = creationDate, if invalid
Transform naturalLanguage string to URI by adding the namespace http://lexvo.org/id/iso639-1/
Transform isOfType string to URI by adding the namespace "http://omv.ontoware.org/2005/05/ontology#
Set description = "#{ontology_acronym} description", if no description given
Transfrom all agent attributes from String to Agent object; by reusing the string as the object name.

ontoportal-lirmm / ncbo_cron