Add outlyer source status to cmdmon protocol

This is not used yet.

candm.h

@@ -496,7 +496,8 @@ typedef struct {
 #define RPY_SD_ST_UNREACH 1
 #define RPY_SD_ST_FALSETICKER 2
 #define RPY_SD_ST_JITTERY 3
-#define RPY_SD_ST_OTHER 4
+#define RPY_SD_ST_CANDIDATE 4
+#define RPY_SD_ST_OUTLYER 5
 
 typedef struct {
   IPAddr ip_addr;