Add package scope.

Author: RKrahl

pytest_dependency.py

@@ -49,6 +49,7 @@ class DependencyManager(object):
 
     ScopeCls = {
         'session': pytest.Session,
+        'package': pytest.Package,
         'module': pytest.Module,
         'class': pytest.Class,
     }

tests/test_03_scope.py

@@ -114,7 +114,6 @@ def test_h():
         test_scope_session_02.py::test_h PASSED
     """)
 
-@pytest.mark.xfail(reason="package scope not yet implemented")
 def test_scope_package(ctestdir):
     """Two packages, some cross module dependencies within the package and
     across package boundaries.