Support for CIDR/IP input

Example input:-

```json
{
   "name":"HackerOne",
   "url":"https://hackerone.com/security",
   "bounty":true,
   "swag":true,
   "domains":[
      "hackerone.com",
      "hackerone.net",
      "hacker101.com",
      "hackerone-ext-content.com"
   ],
   "network":[
      "66.232.20.0/23",
      "206.166.248.0/23",
      "66.232.20.1"
   ]
}
```