Resolves #11 Add Panels fetching

lib/ui_class/panel_class.dart

@@ -0,0 +1,38 @@
+part of '../main.dart';
+
+class Panel {
+
+  static const iconsByComponent = {
+    "config": "mdi:settings",
+    "history": "mdi:poll-box",
+    "map": "mdi:tooltip-account",
+    "logbook": "mdi:format-list-bulleted-type",
+    "custom": "mdi:home-assistant"
+  };
+
+  final String id;
+  final String type;
+  final String title;
+  final String urlPath;
+  final Map config;
+  String icon;
+
+  Panel({this.id, this.type, this.title, this.urlPath, this.icon, this.config}) {
+    if (icon == null || !icon.startsWith("mdi:")) {
+      icon = Panel.iconsByComponent[type];
+    }
+  }
+
+  Widget getWidget() {
+    switch (type) {
+      case "config": {
+        return ConfigPanelWidget();
+      }
+
+      default: {
+        return Text("Unsupported panel component: $type");
+      }
+    }
+  }
+
+}