message: build(aio): freeze lockfile when setting up examples
  PR Close
diff: "test": "yarn check-env && ng test",
  "pree2e": "yarn check-env && yarn ~~update-webdriver",
  "e2e": "ng e2e --no-webdriver-update",
  - "presetup": "yarn install && yarn ~~check-env && yarn boilerplate:remove",
  + "presetup": "yarn install --freeze-lockfile && yarn ~~check-env && yarn boilerplate:remove",
  "setup": "yarn aio-use-npm && yarn example-use-npm",
  "postsetup": "yarn boilerplate:add && yarn build-ie-polyfills && yarn generate-plunkers && yarn generate-zips && yarn docs",
  "presetup-local": "yarn presetup",
  