chore(package): update dependencies

Author: dhruvdutt

package-lock.json

@@ -144,9 +144,9 @@
     "schema-utils": "^1.0.0",
     "ts-jest": "^23.10.1",
     "tslint": "^5.11.0",
-    "typedoc": "^0.12.0",
+    "typedoc": "^0.13.0",
     "typedoc-plugin-monorepo": "^0.1.0",
-    "typescript": "^2.9.2",
+    "typescript": "^3.1.3",
     "webpack": "^4.19.1",
     "webpack-dev-server": "^3.1.8"
   }