add missing files throughout the codebase (#102)

django-stubs/db/models/fields/related.pyi

@@ -62,7 +62,6 @@ class RelatedField(FieldCacheMixin, Field[_ST, _GT]):
     def related_model(self) -> Union[Type[Model], str]: ...
     def check(self, **kwargs: Any) -> List[Any]: ...
     opts: Any = ...
-    def deconstruct(self) -> Tuple[Optional[str], str, List[Any], Dict[str, str]]: ...
     def get_forward_related_filter(self, obj: Model) -> Dict[str, Union[int, UUID]]: ...
     def get_reverse_related_filter(self, obj: Model) -> Q: ...
     @property
@@ -76,7 +75,7 @@ class RelatedField(FieldCacheMixin, Field[_ST, _GT]):
     @property
     def target_field(self) -> Field: ...
 
-class ForeignObject(RelatedField):
+class ForeignObject(RelatedField[_ST, _GT]):
     def __init__(
         self,
         to: Union[Type[Model], str],
@@ -109,7 +108,7 @@ class ForeignObject(RelatedField):
         error_messages: Optional[_ErrorMessagesToOverride] = ...,
     ): ...
 
-class ForeignKey(RelatedField[_ST, _GT]):
+class ForeignKey(ForeignObject[_ST, _GT]):
     _pyi_private_set_type: Union[Any, Combinable]
     _pyi_private_get_type: Any
     def __init__(
@@ -185,10 +184,6 @@ class ManyToManyField(RelatedField[_ST, _GT]):
     _pyi_private_set_type: Sequence[Any]
     _pyi_private_get_type: RelatedManager[Any]
 
-    many_to_many: bool = ...
-    many_to_one: bool = ...
-    one_to_many: bool = ...
-    one_to_one: bool = ...
     rel_class: Any = ...
     description: Any = ...
     has_null_arg: Any = ...
@@ -228,7 +223,6 @@ class ManyToManyField(RelatedField[_ST, _GT]):
         error_messages: Optional[_ErrorMessagesToOverride] = ...,
     ) -> None: ...
     def check(self, **kwargs: Any) -> List[Any]: ...
-    def deconstruct(self) -> Tuple[Optional[str], str, List[Any], Dict[str, str]]: ...
     def get_path_info(self, filtered_relation: None = ...) -> List[PathInfo]: ...
     def get_reverse_path_info(self, filtered_relation: None = ...) -> List[PathInfo]: ...
     m2m_db_table: Any = ...