[CLEANUP] Cleaned up code

- Change variable $values to $settings in Route::setSettings method.
- Added return types to methods.
- Added type to method variables.
- Change ClassNotFoundException so required parameters are first.

src/Pecee/SimpleRouter/Route/RouteUrl.php

@@ -12,7 +12,7 @@ class RouteUrl extends LoadableRoute
         $this->setCallback($callback);
     }
 
-    public function matchRoute($url, Request $request): bool
+    public function matchRoute(string $url, Request $request): bool
     {
         if ($this->getGroup() !== null && $this->getGroup()->matchRoute($url, $request) === false) {
             return false;