[ETCM-925] Add wallet state to log export

[conqeror]

Description

Added wallet state to log export. Example data export is below, no sensitive data should be there. I didn't include address book and the keystore seems to be automatically omitted when account data is serialized.

{
  "walletStatus": "LOADED",
  "error": {
    "_tag": "None"
  },
  "syncStatus": {
    "mode": "synced",
    "currentBlock": 116254,
    "lastNewBlockTimestamp": 1623154882576
  },
  "availableBalance": {
    "_tag": "Some",
    "value": "697060000000000000"
  },
  "pendingBalance": "0",
  "transactions": [
    {
      "hash": "0x0cc9855a3aad8b1e967458f61e851ca60af8dc7a4cb76f2a3b083845903005ff",
      "nonce": 0,
      "blockHash": "0x8576db23bd32591d028e1f757a492f211ff65d269200b663ec2013a9a3a7e2b2",
      "blockNumber": 5170,
      "transactionIndex": 0,
      "from": "0x1Ff7FC39F7F4DC79c5867B9514d0e42607741384",
      "to": "0x3acb55450EE0f532C96CEa955AD3e215AC53A923",
      "value": "1000000000000000000",
      "gasPrice": "20000000000",
      "gas": 90000,
      "input": "0x",
      "isOutgoing": false,
      "isCheckpointed": false,
      "isPending": false,
      "gasUsed": "21000",
      "timestamp": "2021-05-20T11:11:11.000Z",
      "fee": "0",
      "direction": "incoming",
      "status": "persisted_depth",
      "contractAddress": null
    },
    {
      "hash": "0x48c2a04ef470f61ea9b9c5492d261ae4756a7323943b6add72a7c9cab87998f7",
      "nonce": 0,
      "blockHash": "0x57a5c86be2fddd0d5244886771957079871454828fee8ac30e36b5a22decaa67",
      "blockNumber": 5404,
      "transactionIndex": 1,
      "from": "0x3acb55450EE0f532C96CEa955AD3e215AC53A923",
      "to": "0x0000000000000000000000000000000000000000",
      "value": "10000000000000000",
      "gasPrice": "20000000000",
      "gas": 21000,
      "input": "0x",
      "isOutgoing": true,
      "isCheckpointed": false,
      "isPending": false,
      "gasUsed": "21000",
      "timestamp": "2021-05-20T12:13:38.000Z",
      "fee": "420000000000000",
      "direction": "outgoing",
      "status": "persisted_depth",
      "contractAddress": null
    },
    ....
  ],
  "accounts": [
    {
      "address": "0x3acb55450ee0f532c96cea955ad3e215ac53a923",
      "index": 0,
      "balance": "697060000000000000",
      "tokens": {}
    }
  ],
  "tncAccepted": true
}