feat: add a Router() method that returns a mountable mini-app Router …

…when called.

It takes an optional boolean parameter that specifies if the router should inherit middlewares from
the main app when it gets mounted. It defaults to true

src/main.js

@@ -1,10 +1,22 @@
 import RServerApp from './modules/RServerApp.js';
+import Router from './modules/Router.js';
+
 export default {
 
     /**
      * returns an app instance
     */
     instance(configPath) {
         return new RServerApp(configPath);
+    },
+
+    /**
+     * creates mountable router
+     *@param {boolean} [inheritMiddlewares=true] - boolean value indicating if parent middlewares should
+     * be inherited. defaults to true
+     *@returns {Router}
+    */
+    Router(inheritMiddlewares) {
+        return new Router(inheritMiddlewares);
     }
 };