add rclone to standard set

type.go

@@ -18,6 +18,7 @@ const (
 	MEMCACHECLUSTER = Type(iota)
 	MONGO           = Type(iota)
 	MINIO           = Type(iota)
+	RCLONE          = Type(iota)
 )
 
 func (t Type) String() string {
@@ -28,6 +29,8 @@ func (t Type) String() string {
 		return "redis"
 	case MAP:
 		return "map"
+	case RCLONE:
+		return "rclone"
 	case COCKROACH:
 		return "cockroach"
 	case BOLT: