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/Photo.php

@@ -51,7 +51,7 @@ class Photo extends BaseModule
 	 * Fetch a photo or an avatar, in optional size, check for permissions and
 	 * return the image
 	 */
-	public function rawContent()
+	protected function rawContent(array $request = [])
 	{
 		$totalstamp = microtime(true);