SSDM-4670: Added utility method to get the path to the local public config folder.

src/python/OBis/obis/dm/config.py

@@ -190,3 +190,7 @@ class ConfigResolver(object):
                 config = config['public']
         config[param.name] = value
         return config
+
+    def local_public_config_folder_path(self):
+        loc = self.env.location_at_path(['local', 'public'])
+        return self.location_resolver.resolve_location(loc)

src/python/OBis/obis/dm/config_test.py

@@ -46,6 +46,8 @@ def test_read_config(tmpdir):
         expected_dict = json.load(f)
     assert config_dict['user'] == expected_dict['user']
 
+    assert './.obis' == resolver.local_public_config_folder_path()
+
 
 def test_write_config(tmpdir):
     copy_user_config_test_data(tmpdir)