Added missing dependencies

package.json

@@ -36,7 +36,10 @@
   "license": "CC-BY-NC-SA-4.0",
   "dependencies": {
     "@odit/class-validator-jsonschema": "^2.1.1",
+    "class-transformer": "0.3.1",
+    "class-validator": "^0.13.1",
     "consola": "^2.15.0",
+    "cors": "^2.8.5",
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "routing-controllers": "^0.9.0-alpha.6",
@@ -52,4 +55,4 @@
     "ts-node": "^9.1.1",
     "typescript": "^4.1.3"
   }
-}
+}