Report results from CPP unittests on Windows and Linux (Reland) (#35590)
Summary:
Add `--gtest_output=xml:/path/to/artifact-metadata-folder` to scripts invoking unit tests
Add artifacts metadata to windows test jobs
Install `unittest-xml-reporting` and add IN_CIRCLECI environment variable to remote python test results on Windows
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35590
Test Plan: Results should eventually be published to: https://circleci.com/build-insights/gh/pytorch/pytorch/master
Differential Revision: D20742687
Pulled By: malfet
fbshipit-source-id: baae60bdb0a4fb8d4f0d2baa77c65402fa2b99ae
