Add Router to App

- Create new Friendica\App\Router class
- Add route_collection hook
- Add route dispatching in App->runFrontend

src/App/Router.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Friendica\App;
+
+
+use FastRoute\DataGenerator\GroupCountBased;
+use FastRoute\Dispatcher;
+use FastRoute\RouteCollector;
+use FastRoute\RouteParser\Std;
+use Friendica\Module\Itemsource;
+
+class Router
+{
+	/** @var RouteCollector */
+	public $routeCollector;
+
+	public function __construct(RouteCollector $routeCollector = null)
+	{
+		if (!$routeCollector) {
+			$routeCollector = new RouteCollector(new Std(), new GroupCountBased());
+		}
+
+		$this->routeCollector = $routeCollector;
+	}
+
+	public function getModuleClass($cmd)
+	{
+		$cmd = '/' . ltrim($cmd, '/');
+
+		$dispatcher = new \FastRoute\Dispatcher\GroupCountBased($this->routeCollector->getData());
+
+		$moduleClass = null;
+
+		// @TODO: Enable method-specific modules
+		$httpMethod = 'GET';
+		$routeInfo = $dispatcher->dispatch($httpMethod, $cmd);
+		if ($routeInfo[0] === Dispatcher::FOUND) {
+			$moduleClass = $routeInfo[1];
+		}
+
+		return $moduleClass;
+	}
+}