Extract binary dependencies into external repositories.

Author: freakboy3742

.gitignore

@@ -2,18 +2,12 @@
 *.swp
 .envrc
 .vscode/
-alias/*
-archive/*
-build/*
-diff/*
-dist/*
-downloads/*
-install/*
-local/*
-merge/*
-src/*
-support/*
-wheels/*
+build
+dist
+downloads
+install
+local
+support
 *.dist-info
 __pycache__
 tests/testbed/macOS