Merge pull request grpc-ecosystem#528 from tronprotocol/refactor_tran…

…saction

refactor the transaction structure

core/Tron.proto

@@ -41,6 +41,11 @@ message Account {
   bytes code = 13;
 }
 
+message acuthrity {
+  AccountId account = 1;
+  bytes permission_name = 2;
+}
+
 
 message permision {
   AccountId account = 1;
@@ -116,18 +121,21 @@ message Transaction {
     int64 fee = 1;
     code ret = 2;
   }
+
   message raw {
     TransactionType type = 1;
     int64 ref_block_num = 3;
     bytes ref_block_hash = 4;
     int64 expiration = 8;
+    repeated acuthrity auths = 9;
     // data not used
     bytes data = 10;
     repeated Contract contract = 11;
     // scripts not used
     bytes scripts = 12;
     int64 timestamp = 14;
   }
+
   raw raw_data = 1;
   repeated bytes signature = 2;
   repeated Result ret = 5;