Add total restart counter for service & sysv daemons

This patch adds a recent feature request to keep track of the total
number of restarts (including crashes and initctl restart) of both
service and sysv daemons.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/svc.h

@@ -137,6 +137,7 @@ typedef struct svc {
 
 	/* Counters */
 	char           once;	       /* run/task, (at least) once per runlevel */
+	unsigned int   restart_tot;    /* Total restarts ever, summarized, including `initctl restart` */
 	unsigned char  restart_max;    /* Maximum number of restarts allowed */
 	int            restart_tmo;    /* Time required for the service to start. */
 	unsigned char  oncrash_action; /* Action to perform in crashed state. */