FEAT #13679 TIE 0:15 clean notifications files

modules/notifications/class/notifications_controler.php

.../notifications/class/notifications_controler_Abstract.php

modules/notifications/manage_notifications.php

modules/notifications/manage_notifications_controler.php

modules/notifications/notifications_tables_definition.php

modules/notifications/xml/IVS/requests_definitions.xml

modules/templates/class/templates_controler.php

modules/templates/class/templates_controler_Abstract.php

modules/templates/file_iframe.php

modules/templates/templates_tables_definition.php