Add tslint and prettier

So we have some style checkin'

Author: rylnd

package-lock.json

@@ -35,9 +35,13 @@
     "concurrently": "^4.1.0",
     "mocha": "^6.1.3",
     "onchange": "^5.2.0",
+    "prettier": "^1.17.0",
     "serve-favicon": "^2.5.0",
     "supertest": "^4.0.2",
     "ts-node": "^8.1.0",
+    "tslint": "^5.15.0",
+    "tslint-config-prettier": "^1.18.0",
+    "tslint-plugin-prettier": "^2.0.1",
     "typescript": "^3.4.3"
   }
 }