Resolve "Fetch highscores"

Closes #3 (closed)

backend/api/tournament.js

+const express = require("express");
+const router = express.Router();
+const mongo = require("mongodb");
+const MongoClient = mongo.MongoClient;
+const connectionUrl = process.env.MONGO_CONNECTION_STRING;
+/*
+router.post("/new/:host/:games/:name/:tpr/:players/:rpg", (req, res) => {
+  MongoClient.connect(
+    connectionUrl,
+    { useNewUrlParser: true, useUnifiedTopology: true },
+    (err, client) => {
+      // Unable to connect to database
+      if (err) {
+        res.sendStatus(500); // Internal server error
+        return;
+      }
+
+      const games = req.params.games.split("&");
+
+      const db = client.db("gameWare");
+      const collection = "tournaments";
+
+      db.collection(collection).insertOne(
+        {
+          gameid: req.params.gameid,
+          userid: req.params.userid,
+          value: parseInt(req.params.score)
+        },
+        (err, result) => {
+          if (err) {
+            res.sendStatus(500); // Internal server error
+            return;
+          }
+          res.json(result);
+        }
+      );
+    }
+  );
+});
+*/