7.3.2 Retrieve list of template message

### Description
Get list of template messages by sponsor. 

#### Endpoint
```
[GET] /api/v1/answers/my
```

#### Json response
```
{
"id":<Long>
"contact_info":<String>,
"message":<String>,
"status":<String>
}
```

#### Restriction
- [ ] Only sponsors can use it