Add pyoxigraph python package

python/pyoxigraph/__init__.py

@@ -0,0 +1,6 @@
+from .pyoxigraph import __author__, __version__
+from .models import NamedNode, BlankNode, Literal, Triple, Quad, DefaultGraph
+from .parse import parse
+from .serialize import serialize
+from .store import Store
+from .sparql import Variable, QuerySolutions, QuerySolution, QueryTriples