Add an access abstraction (only array tests work, yet)

The access abstraction will be the new way of accessing builtin objects. This way it will be easier to move that to another process

test/test_api/test_environment.py

@@ -11,7 +11,8 @@ def test_sys_path():
 
 @pytest.mark.parametrize(
     'version',
-    ['2.6', '2.7', '3.3', '3.4', '3.5', '3.6', '3.7']
+    # TODO add '2.6', '2.7',
+    ['3.3', '3.4', '3.5', '3.6', '3.7']
 )
 def test_versions(version):
     executable = 'python' + version