[Issue nestjs#69] Add dependencies for ESLint support

Author: Karen Garcia dos Santos

package-lock.json

@@ -35,6 +35,10 @@
     "@types/jest": "^24.0.18",
     "@types/node": "^12.7.8",
     "@types/supertest": "^2.0.8",
+    "@typescript-eslint/eslint-plugin": "^2.6.0",
+    "@typescript-eslint/parser": "^2.6.0",
+    "eslint-config-prettier": "^6.5.0",
+    "eslint-plugin-prettier": "^3.1.1",
     "jest": "^24.9.0",
     "prettier": "^1.18.2",
     "supertest": "^4.0.2",