Add ip2geo driver

[bfzli]

Summary

Adds a new driver for the ip2geo IP geolocation API.

• Supports IPv4 and IPv6 address lookup
• Returns all standard fields: city, country, countryCode, latitude, longitude, region, regionCode, timezone, postalCode
• Full raw API response available via getRaw() (includes ASN, currency, flag, continent, etc.)
• Authentication via X-Api-Key header
• Graceful error handling (returns defaults on failure)

Configuration

// config/ip-geolocation.php
'driver' => 'ip2geo',

'ip2geo' => [
    'key' => env('IPGEOLOCATION_IP2GEO_KEY'),
],

Files changed

• New: src/Drivers/IP2GeoDriver.php — driver implementation
• Modified: src/IPGeolocationManager.php — added createIp2geoDriver() factory method
• Modified: config/ip-geolocation.php — added ip2geo config section

Test plan

• php -l syntax check passes
• get('134.201.250.155') returns normalized data (Los Angeles, CA, 34.0544, -118.244)
• getRaw() returns full API response with ASN, currency, etc.
• Bad API key gracefully returns defaults (all null)
• Manager resolves ip2geo driver correctly