Accept ionic_swap proposal from Initiator and create transaction that seals and execute swap operation

### Request

```
{
  "jsonrpc": "2.0",
  "id": "0",
  "method": "ionic_swap_accept_proposal",
  "params": {
    "hex_raw_proposal": "[encoded data, 12280 characters]"

  }
}
```

### Response

```
{
    "id": "0",
    "jsonrpc": "2.0",
    "result": {
        "result_tx_id": "c08522c94355524cc8a1fa1514419814e99989ba503382256cbffc39a733a186"
    }
}

```

**result_tx_id** - ionic_swap transaction
