Dynamic config loading

- Move settings, defaults and dbstructure to directory 'static'
- Dynamic loading of config files (after the static loading)
- Filter out '-sample.config.php' and '-sample.ini.php' files
- Remove unnecessary ConfigFileManager
- Move ConfigFileLoader to Utils
- Add tests for multi-loading for INI, config and sample-filtering

src/Console/AutomaticInstallation.php

@@ -9,7 +9,7 @@ use Friendica\Core\Installer;
 use Friendica\Core\Theme;
 use Friendica\Util\BasePath;
 use Friendica\Util\BaseURL;
-use Friendica\Util\Config\ConfigFileLoader;
+use Friendica\Util\ConfigFileLoader;
 use RuntimeException;
 
 class AutomaticInstallation extends Console