Added setup.py for pip

Merge pull request #2 from seasidesparrow/main

 	new file:   setup.py

Initial release

 	new file:   README.md

 	new file:   requirements.txt
 	new file:   schema/Affil.json
 	new file:   schema/Comment.json
 	new file:   schema/Contrib.json
 	new file:   schema/DataLink.json
 	new file:   schema/Document.json
 	new file:   schema/Document.json.bak
 	new file:   schema/ESource.json
 	new file:   schema/EdHist.json
 	new file:   schema/IssnType.json
 	new file:   schema/Keyword.json
 	new file:   schema/OpenAccess.json
 	new file:   schema/OtherContrib.json
 	new file:   schema/Pagination.json
 	new file:   schema/PersistentID.json
 	new file:   schema/PubDates.json
 	new file:   schema/Publication.json
 	new file:   schema/PublisherID.json
 	new file:   schema/RecordData.json
 	new file:   schema/RelatedTo.json
 	new file:   test_data/gcnc.json
 	new file:   test_data/gcnc_fails.json
 	new file:   validation_example.py