add proxy interface and move router packages

proxy/proxy.go

@@ -4,13 +4,13 @@ package proxy
 import (
 	"context"
 
-	"github.com/micro/go-micro/init"
+	"github.com/micro/go-micro/options"
 	"github.com/micro/go-micro/server"
 )
 
 // Proxy can be used as a proxy server for go-micro services
 type Proxy interface {
-	init.Options
+	options.Options
 	// ServeRequest will serve a request
 	ServeRequest(context.Context, Request, Response) error
 	// run the proxy