Add misc types for mock and unittest.mock

Author: mxr

stdlib/3/unittest/mock.pyi

@@ -5,6 +5,8 @@ from typing import Any, List, Optional, Text, Tuple, Type, TypeVar
 
 _T = TypeVar("_T")
 
+__all__: List[str]
+
 FILTER_DIR: Any
 
 class _slotted: ...

third_party/2and3/mock.pyi

@@ -5,6 +5,9 @@ from typing import Any, List, Optional, Text, Tuple, Type, TypeVar
 
 _T = TypeVar("_T")
 
+__all__: List[str]
+__version__: str
+
 FILTER_DIR: Any
 
 class _slotted: ...