Add MANIFEST.in (#52908)

Summary:
Do not build PyTorch if `setup.py` is called with  'sdist' option
Regenerate bundled license while sdist package is being built
Refactor `check_submodules` out of `build_deps` and check that submodules project are present during source package build stage.

Test that sdist package is configurable during `asan-build` step

Fixes https://github.com/pytorch/pytorch/issues/52843

Pull Request resolved: https://github.com/pytorch/pytorch/pull/52908

Reviewed By: walterddr

Differential Revision: D26685176

Pulled By: malfet

fbshipit-source-id: 972a40ae36e194c0b4e0fc31c5e1af1e7a815185

MANIFEST.in

@@ -0,0 +1,28 @@
+include MANIFEST.in
+include CMakeLists.txt
+include CITATION
+include LICENSE
+include NOTICE
+include .gitmodules
+include mypy.ini
+include requirements.txt
+include version.txt
+recursive-include android *.*
+recursive-include aten *.*
+recursive-include binaries *.*
+recursive-include c10 *.*
+recursive-include caffe2 *.*
+recursive-include cmake *.*
+recursive-include torch *.*
+recursive-include tools *.*
+recursive-include test *.*
+recursive-include docs *.*
+recursive-include ios *.*
+recursive-include third_party *
+recursive-include test *.*
+recursive-include benchmarks *.*
+recursive-include scripts *.*
+recursive-include mypy_plugins *.*
+recursive-include modules *.*
+prune */__pycache__
+global-exclude *.o *.so *.dylib *.a .git *.pyc *.swp