Get IPv4/IPv6 Address for device.

[sabzo]

Future enhancement

https://gitlab.com/fdroid/fdroidclient/blob/1.1-alpha3/app/src/main/java/org/fdroid/fdroid/net/WifiStateChangeService.java#L92-L211

[sabzo]

cc @eighthave

[eighthave]

Another key part I forgot to mention is that getting the IP address gets a lot harder when the device is acting like a WiFi Access Point / Hotspot.

Here is some relevant history:

• https://gitlab.com/fdroid/fdroidclient/commit/644849175102c8dcb0b24889718bb2527d0c66b8
• https://gitlab.com/fdroid/fdroidclient/issues/690
• https://gitlab.com/fdroid/fdroidclient/commit/94f79a6438c7021db9c02003865c17f3a0da1718
• https://gitlab.com/fdroid/fdroidclient/issues/589
• https://gitlab.com/fdroid/fdroidclient/issues/193