added ntriples writer

Conflicts:
	jena/src/main/scala/org/w3/banana/jena/JenaModule.scala
	project/build.scala
	rdf-test-suite/jvm/src/main/scala/org/w3/banana/io/NTriplesTestSuite.scala
	rdf/common/src/main/scala/org/w3/banana/RDFModule.scala
	rdf/common/src/main/scala/org/w3/banana/RDFOps.scala
	sesame/src/main/scala/org/w3/banana/sesame/SesameModule.scala
move ntriples to io folder, made fixes according to peer reviews, fixed overrides

Conflicts:
	jena/src/main/scala/org/w3/banana/jena/JenaModule.scala
	rdf-test-suite/jvm/src/main/scala/org/w3/banana/io/NTriplesReaderTestSuite.scala
	rdf/common/src/main/scala/org/w3/banana/RDFOps.scala
	sesame/src/test/scala/org/w3/banana/sesame/io/SesameSerialisationTest.scala
memory reduction writing to OutputStream & fix eol
[ntriples] Added missing tests. And more fixes.