friend rpc service initial commit

src/rpc/friend/open_im_friend.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"Open_IM/src/rpc/friend/friend"
+	"flag"
+)
+
+func main() {
+
+	rpcPort := flag.Int("port", 10200, "get RpcFriendPort from cmd,default 12000 as port")
+	flag.Parse()
+	rpcServer := friend.NewFriendServer(*rpcPort)
+	rpcServer.Run()
+}