Rewrite phase 1.

Started improved client code structure.

Implemented session based authentication serverside.

Implemented user, match, and sport database models serverside.

Implemented Controllers for variety of C and R operations of CRUD.

sports-matcher/server/middleware/database.js

@@ -0,0 +1,9 @@
+import mongoose from "mongoose";
+
+export function needDatabase(res, req, next) {
+    if (mongoose.connection.readyState != 1) {
+        res.status(500).send("Internal server error: Database connection faulty.");
+    } else {
+        next();
+    }
+}