Support HDWallet provider

[Vivi728]

We hope that by adapting the HDWallet provider, users can use HDWallet locally by modifying truffle-config.js. In this way, developers can sign locally through HDWallet when deploying the contract and send it to the blockchain network to implement the deployment of the contract.

Here is a configuration example of the network part of the configuration file:

const mnemonic = "scrub quality dune window title attitude merry fuel expire flock hungry kidney"

networks: {
development :{
provider: function () {
return new HDWalletProvider(mnemonic,'http://47.241.91.2:6789')
},
network_id: "*",
},
}

[biganxin]

@fksyuan