The fdholder will be freed to time. Let the shutdown algorithm handle it.

Fix unsupervision of the scandir avoiding remove inner daemon.
Do not crash if rc.shudown return a fail.
Fix signal to sent to the remaining service inside container.

add new skeleton file rc.init.container to easily set a program to launch inside a container. unsupervise service at down process in rc.shutdown file

add new variable at init.conf skeleton for the 66-boot change to handle the boot inside a container and avoid creation of the logger