Feature Proposal - Support IP2Location.io API

[ip2location]

It looks like this project has not been updated for a while.

I would like to introduce our free IP2Location.io API which has free tier for public use. Please consider to add this as an alternate source in node-where.

{ "ip":"8.8.8.8", "country_code":"US", "country_name":"United States of America", "region_name":"California", "city_name":"Mountain View", "latitude":37.405992, "longitude":-122.078515, "zip_code":"94043", "time_zone":"-07:00", "asn":"15169", "as":"Google LLC", "is_proxy":false }