fix: r & s should be quantity in transaction when `eth_getTransaction…

[classicalliu]

…ByHash`

Related Issues:

• Zero-padding hex quantity causes hardhat to freak out godwoken#818

r and s in transaction when call eth_getTransactionByHash / eth_getBlockByNumber(num, true) / eth_getBlockByHash(hash, true) should regard as quantity type.

For example:

{
    "jsonrpc": "2.0",
    "id": 2,
    "result": {
        "blockHash": "0xc88634c7958b9ef61eedd675680ccc9ceff74c97d05696f5565e15be78bb3e1e",
        "blockNumber": "0xf16d75",
        "from": "0x18228ef922a5999a124035160728d68658732995",
        "gas": "0xce53",
        "gasPrice": "0x55ae82600",
        "hash": "0x129851fcb7f03b1e006ae5935f671d927d97617dcefb182a53d775ea61be4ab5",
        "input": "0xa9059cbb000000000000000000000000145a67769bad2fdae1ed2b5dc8c1b6a76f4d9ff2000000000000000000000000000000000000000000000001611fd470a8cca000",
        "nonce": "0x1670",
        "r": "0xbca226c0ffd4ce56d06b6eb4022e11a294e78529fd4f5d29b707df4d566e7ba",
        "s": "0x4926704a019f312d9d765a095eee58e868d855b815b659c00f524be815d288f0",
        "to": "0x1bbf25e71ec48b84d773809b4ba55b6f4be946fb",
        "transactionIndex": "0xf",
        "type": "0x0",
        "v": "0x1c",
        "value": "0x0"
    }
}

It's a transaction in ethereum mainnet, the r of transaction's length without 0x prefix is 63, not 64