Have only JSON files

[szepeviktor]

Would you merge a PR that adds a command (jq) that converts Linode text to JSON?

# prefix, country, subdivision, city, zipcode, allocation_size
2600:3c00::/32,US,US-TX,Richardson,,

{
    "prefixes": [
        {
            "prefix": "2600:3c00::/32",
            "country": "US",
            "subdivision": "US-TX",
            "city": "Richardson",
            "zipcode": "",
            "allocation_size": ""
        }
    ]
}