Return the balances across all whitelisted assets of the wallet

URL: ```http:://127.0.0.1:36944/json_rpc```
### Request: 
```json
{
  "id": 0,
  "jsonrpc": "2.0",
  "method": "getbalance",
  "params": {
  }
}
```
### Request description: 
```

```
### Response: 
```json
{
  "id": 0,
  "jsonrpc": "2.0",
  "result": {
    "balance": 10000000000,
    "balances": [{
      "asset_info": {
        "asset_id": "f74bb56a5b4fa562e679ccaadd697463498a66de4f1760b2cd40f11c3a00a7a8",
        "current_supply": 500000000000000000,
        "decimal_point": 12,
        "full_name": "Lethean wrapped ABC",
        "hidden_supply": false,
        "meta_info": "{ \"some_arbitrary_field_name\": \"some arbitrary value\"}",
        "owner": "f74bb56a5b4fa562e679ccaadd697463498a66de4f1760b2cd40f11c3a00a7a8",
        "owner_eth_pub_key": "",
        "ticker": "ZABC",
        "total_max_supply": 1000000000000000000
      },
      "awaiting_in": 1000000000000,
      "awaiting_out": 2000000000000,
      "outs_amount_max": 2000000000000,
      "outs_amount_min": 2000000000000,
      "outs_count": 7,
      "total": 100000000000000,
      "unlocked": 50000000000000
    }],
    "unlocked_balance": 11000000000
  }
}
```
### Response description: 
```
    "balance": Native coins total amount
    "balances": Balances groupped by it's asset_id
      "asset_info": Asset info details
        "asset_id": Asset ID
        "current_supply": Currently emitted supply for the given asset (ignored for REGISTER operation).
        "decimal_point": Decimal point.
        "full_name": Full name of the asset.
        "hidden_supply": This field is reserved for future use and will be documented later.
        "meta_info": Any other information associated with the asset, by default in a json format.
        "owner": Owner's key, used only for EMIT and UPDATE validation, can be changed by transferring asset ownership.
        "owner_eth_pub_key": [Optional] Owner's key in the case when ETH signature is used.
        "ticker": Ticker associated with the asset.
        "total_max_supply": Maximum possible supply for a given asset, cannot be changed after deployment.
      "awaiting_in": Unconfirmed amount for receive
      "awaiting_out": Unconfirmed amount for send
      "outs_amount_max": Output's maximum amount
      "outs_amount_min": Output's minimum amount
      "outs_count": Number of total unspent outputs (including locked)
      "total": Total coins available(including locked)
      "unlocked": Unlocked coins available(the ones that could be used right now)
    "unlocked_balance": Native coins total unlocked amount

```
<sub>Auto-doc built with: 2.2.0.461[d830c07]</sub>
