add rdflib.tools package to setup.py
add rdflib.tools package to setup.py

armandobs14/rdflib,yingerj/rdflib,RDFLib/rdflib,dbs/rdflib,yingerj/rdflib,marma/rdflib,armandobs14/rdflib,dbs/rdflib,armandobs14/rdflib,dbs/rdflib,marma/rdflib,RDFLib/rdflib,marma/rdflib,yingerj/rdflib,avorio/rdflib,avorio/rdflib,avorio/rdflib,yingerj/rdflib,RDFLib/rdflib,avorio/rdflib,ssssam/rdflib,RDFLib/rdflib,ssssam/rdflib,dbs/rdflib,armandobs14/rdflib,marma/rdflib,ssssam/rdflib,ssssam/rdflib