add proto of mint

plugin/dapp/token/proto/token.proto

@@ -15,6 +15,7 @@ message TokenAction {
         AssetsWithdraw       withdraw          = 5;
         AssetsGenesis        genesis           = 6;
         AssetsTransferToExec transferToExec    = 8;
+        TokenMint            tokenMint         = 9;
     }
     int32 Ty = 7;
 }
@@ -40,6 +41,11 @@ message TokenRevokeCreate {
     string owner  = 2;
 }
 
+message TokenMint {
+    string symbol = 1;
+    int64  amount = 2;
+}
+
 // state db
 message Token {
     string name         = 1;