message: fix(create-web-scripts-library): move web-scripts to devDependency
  web-scripts should have been a dev dependency, it is not used directly by the CLI
diff: "url": "https://github.com/spotify/web-scripts/issues"
  },
  "dependencies": {
  - "@spotify/web-scripts": "^1.1.0",
  "chalk": "^2.4.2",
  "commander": "^2.20.0",
  "execa": "^2.0.1",
  "fs-extra": "^7.0.1"
  },
  "devDependencies": {
  + "@spotify/web-scripts": "^1.1.0",
  "@types/fs-extra": "^7.0.0",
  "tempy": "^0.3.0"
  },
  