NxCacheScope

This reproduces an issue where an app with an npm scope is not restored from cache when output to node_modules.

Steps

1. npm install
2. Run npx nx build my-app
3. Check node_modules/my-app
4. Delete node_modules/my-app folder
5. Run npx nx build my-app
6. Note that node_modules/my-app is restored
7. Run npx nx build my-scoped-app
8. Check node_modules/@my-scoped-app
9. Delete node_modules/@my-scoped-app folder
10. Run npx nx build my-scoped-app
11. Note that node_modules/@my-scoped-app is not restored even though the cache output says it was.