adding basic user controller and model as well as updating user route

api/controllers/usersController.js

@@ -0,0 +1,12 @@
+import User from '../models/userModel.js';
+
+export const getAllUsers = async (req, res, next) => {
+    const allUsers = await User.find({}).exec();
+    res.send(allUsers);
+}
+
+export const createUser = async (req, res, next) => {
+    User.create(req.body).then(result => {
+        res.send(result)
+    });
+}