use customized rpc implementation, remove Tarpc & Tonic (#348)

This patch removes Tarpc & Tonic GRPC and implements a customized rpc framework, which can be used by peer rpc and cli interface.

web config server can also use this rpc framework.

moreover, rewrite the public server logic, use ospf route to implement public server based networking. this make public server mesh possible.

easytier/src/common/global_ctx.rs

@@ -4,7 +4,7 @@ use std::{
     sync::{Arc, Mutex},
 };
 
-use crate::rpc::PeerConnInfo;
+use crate::proto::cli::PeerConnInfo;
 use crossbeam::atomic::AtomicCell;
 
 use super::{
@@ -179,6 +179,10 @@ impl GlobalCtx {
         self.config.get_network_identity()
     }
 
+    pub fn get_network_name(&self) -> String {
+        self.get_network_identity().network_name
+    }
+
     pub fn get_ip_collector(&self) -> Arc<IPCollector> {
         self.ip_collector.clone()
     }
@@ -191,7 +195,6 @@ impl GlobalCtx {
         self.stun_info_collection.as_ref()
     }
 
-    #[cfg(test)]
     pub fn replace_stun_info_collector(&self, collector: Box<dyn StunInfoCollectorTrait>) {
         // force replace the stun_info_collection without mut and drop the old one
         let ptr = &self.stun_info_collection as *const Box<dyn StunInfoCollectorTrait>;