Added empty schema for production reporting work

+# Saved by TopBraid on Thu Oct 06 11:26:46 BST 2011
+# baseURI: http://www.reportinghub.no/ep/schema/1.0/production_activity
+
+@prefix :        <http://www.reportinghub.no/ep/schema/1.0/production_activity#> .
+@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
+
+<http://www.reportinghub.no/ep/schema/1.0/production_activity>
+      rdf:type <http://www.w3.org/2002/07/owl#Ontology> ;
+      <http://www.w3.org/2002/07/owl#versionInfo>
+              "Created with TopBraid Composer"^^xsd:string .