pytorch

da0e93a8 - Move `fbcode` related coverage code to `fb/` folder and add `TARGETS` (#43800)

Move `fbcode` related coverage code to `fb/` folder and add `TARGETS` (#43800) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/43800 1. Move fbcode related coverage code to fb/ folder and add TARGETS so that we can use buck run to run the tool and solved the import probelm. 2. Write `README.md` to give users guidance about the tool Test Plan: On devserver: ``` buck run //caffe2/fb/code_coverage/tool:coverage -- //caffe2/c10: ``` More examples in README.md Reviewed By: malfet Differential Revision: D23404988 fbshipit-source-id: 4942cd0e0fb7bd28a5e884d9835b93f00adb7b92