D-Net

#1044 pre-release switching to released version of parent pom and released dependencies

introducing scm definition

#919 renaming DocumentToResearchInitiative to DocumentToConceptId and DocumentToResearchInitiatives to DocumentToConceptIds

#1019 introducing integration test

#919 introducing integration test input and output

#919 introducing integration test containing empty input and output

#919 introducing project to concept transformer module

#1019 introducing PIG module transforming pmc ingested metadata into common extracted document metadata

#963 propagating dataset -> mdstore from import to exporting phase: importer produces DocumentToMDStore datasetore utilized by exporter module. Updating transformer definition to handle DocumentToMDStore instead of Identifier schema

introducing embedded integration test entry