Force wallet to fetch tx pool from daemon and go through it's transactions

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

```
### Response: 
```json
{
  "id": 0,
  "jsonrpc": "2.0",
  "result": {
    "status": "OK"
  }
}
```
### Response description: 
```
    "status": Operation status

```
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