Need to be able to init on any distro.

The current supervisor.d configs are configured specifically for a particular supervisor version / installation.
This decouples the configuration so we can use it on any distro.

overlay/etc/supervisor.d/sshd.ini

@@ -0,0 +1,14 @@
+
+[program:sshd]
+autostart=true
+autorestart=true
+priority=10
+user=root
+command=/usr/sbin/sshd -Ddp 2222
+stopsignal=QUIT
+stdout_logfile=/var/log/supervisor/sshd.log
+stdout_logfile_maxbytes=10MB
+stdout_logfile_backups=7
+stderr_logfile=/var/log/supervisor/sshd.err.log
+stderr_logfile_maxbytes=10MB
+stderr_logfile_backups=7