Refactor container logging

[troglobit]

Due to lack of syslog support in Podman, containers in Infix log to syslogd using a helper program called k8s-logger.

This helper requires containers to log to a fifo before it converts the k8s log format to syslog() calls.

To reduce complexity of the overall container support in Infix this should be refactored to use the journald backend of Podman and add journald logging support to sysklogd.