Re-organize directory structure (#4971)

See discussion in #2491

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

stdlib/zipapp.pyi

@@ -0,0 +1,24 @@
+import sys
+from pathlib import Path
+from typing import BinaryIO, Callable, Optional, Union
+
+_Path = Union[str, Path, BinaryIO]
+
+class ZipAppError(ValueError): ...
+
+if sys.version_info >= (3, 7):
+    def create_archive(
+        source: _Path,
+        target: Optional[_Path] = ...,
+        interpreter: Optional[str] = ...,
+        main: Optional[str] = ...,
+        filter: Optional[Callable[[Path], bool]] = ...,
+        compressed: bool = ...,
+    ) -> None: ...
+
+else:
+    def create_archive(
+        source: _Path, target: Optional[_Path] = ..., interpreter: Optional[str] = ..., main: Optional[str] = ...
+    ) -> None: ...
+
+def get_interpreter(archive: _Path) -> str: ...