Adjust the test dialect for postgreSQL

Author: fredericDelaporte

src/NHibernate.Test/TestDialects/PostgreSQL91TestDialect.cs

@@ -0,0 +1,10 @@
+namespace NHibernate.Test.TestDialects
+{
+	public class PostgreSQL91TestDialect : PostgreSQL83TestDialect
+	{
+		public PostgreSQL91TestDialect(Dialect.Dialect dialect)
+			: base(dialect)
+		{
+		}
+	}
+}