API - Add | Remove Routing Rules (#3189)

* add RuleTag to routing rules

* add router pb commands

* add and remove routing rules api

* cleanup

* fix

* improve error msg

* add append flag
apply balancer config

app/router/config.go

@@ -11,6 +11,7 @@ import (
 
 type Rule struct {
 	Tag       string
+	RuleTag   string
 	Balancer  *Balancer
 	Condition Condition
 }
@@ -150,7 +151,7 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 		leastLoadStrategy := NewLeastLoadStrategy(s)
 		return &Balancer{
 			selectors:   br.OutboundSelector,
-			ohm:         ohm, 
+			ohm:         ohm,
 			fallbackTag: br.FallbackTag,
 			strategy:    leastLoadStrategy,
 		}, nil
@@ -159,7 +160,7 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 	case "":
 		return &Balancer{
 			selectors:   br.OutboundSelector,
-			ohm:         ohm, 
+			ohm:         ohm,
 			fallbackTag: br.FallbackTag,
 			strategy:    &RandomStrategy{},
 		}, nil