Main menu and save function to json file implemented.

tilorswift/js/menu/MenuGroup.js

@@ -0,0 +1,34 @@
+export default class MenuGroup
+{
+    className = 'menu-group';
+
+    constructor(title)
+    {
+        this.title = title;
+        this.menuEntries = [];
+    }
+
+    addMenuEntry(entry)
+    {
+        this.menuEntries.push(entry);
+    }
+
+    getElement()
+    {
+        let htmlElement = document.createElement('div');
+        htmlElement.classList.add(this.className);
+        htmlElement.innerText = this.title;
+
+        let dropdown = document.createElement('ul');
+        dropdown.classList.add('menu-dropdown');
+        htmlElement.appendChild(dropdown);
+
+        this.menuEntries.forEach(
+            (entry) => {
+                dropdown.appendChild(entry.getElement());
+            }
+        );
+
+        return htmlElement;
+    }
+}