add option to allow for setting extra daemon args for containerized services
The ceph orchestrator YML specs for service templates has an option for "extra_container_args" which allows the user to add additional arguments to the docker/podman command line.
We also need to be able to pass additional arguments to the service inside the container, such as node-exporter. Having a parameter like "extra_daemon_args" that passed the given args to the service itself inside the container would allow more control over the containerized service.
In the case of node-exporter it would enable activating (or deactivating) some of the metrics collected.