message: Add bemetalsmith as a devDependency
diff: "url": "http://www.bentley.com"
  },
  "devDependencies": {
  + "@bentley/bemetalsmith": "^1.7.13",
  "@types/chai": "^4.0.4",
  "@types/fs-extra": "^4.0.3",
  - "@types/mocha": "^2.2.43",
  + "@types/mocha": "^2.2.44",
  "@types/node": "^8.0.47",
  "ajv": "^5.3.0",
  "chai": "^4.1.2",
  