Package torch/*.pyi type hints (#103016)

Including `torch._VF` and `torch.return_types`

These are generated by:
4003e96ca1/tools/pyi/gen_pyi.py (L1139-L1155)

Ref #99541
Pull Request resolved: https://github.com/pytorch/pytorch/pull/103016
Approved by: https://github.com/Skylion007

setup.py

@@ -1052,6 +1052,7 @@ def main():
         'py.typed',
         'bin/*',
         'test/*',
+        '*.pyi',
         '_C/*.pyi',
         'cuda/*.pyi',
         'fx/*.pyi',