fix maker distrib

Helius

2022-06-13 8b854ff5dfae5bb3066380a461b6e972b9fa502d

 src/main/java/cc/mrbird/febs/dapp/chain/ContractChainService.java

@@ -22,4 +22,6 @@
    int decimals();

    BigInteger blockNumber();

    BigInteger totalSupply();
}