Feat/web （Patchset 4） (#460)

support basic functions in frontend
1. create/del network
2. inspect network running status

easytier/src/proto/common.proto

@@ -4,6 +4,24 @@ import "error.proto";
 
 package common;
 
+message FlagsInConfig {
+  string default_protocol = 1;
+  string dev_name = 2;
+  bool enable_encryption = 3;
+  bool enable_ipv6 = 4;
+  uint32 mtu = 5;
+  bool latency_first = 6;
+  bool enable_exit_node = 7;
+  bool no_tun = 8;
+  bool use_smoltcp = 9;
+  string foreign_network_whitelist = 10;
+  bool disable_p2p = 11;
+  bool relay_all_peer_rpc = 12;
+  bool disable_udp_hole_punching = 13;
+  string ipv6_listener = 14;
+  bool multi_thread = 15;
+}
+
 message RpcDescriptor {
   // allow same service registered multiple times in different domain
   string domain_name = 1;
@@ -45,8 +63,10 @@ message RpcPacket {
 message Void {}
 
 message UUID {
-  uint64 high = 1;
-  uint64 low = 2;
+  uint32 part1 = 1;
+  uint32 part2 = 2;
+  uint32 part3 = 3;
+  uint32 part4 = 4;
 }
 
 enum NatType {