Make BaseModule a real entity

- Add all dependencies, necessary to run the content (baseUrl, Arguments)
- Encapsulate all POST/GET/DELETE/PATCH/PUT methods as protected methods inside the BaseModule
- Return Module content ONLY per `BaseModule::run()` (including the Hook logic there as well)

src/Module/Contact.php

@@ -91,7 +91,7 @@ class Contact extends BaseModule
 		DI::baseUrl()->redirect($redirectUrl);
 	}
 
-	public function post()
+	protected function post(array $request = [], array $post = [])
 	{
 		if (!local_user()) {
 			return;