Ethernet support

[strange-v]

Hi, thank you for the library!

I'm using it (just started) on WT32-ETH01, which supports an Ethernet connection instead of WiFi. To make it work, I had to add a tiny change to the "begin" method.

ETH_PHY_TYPE - describes what physical chip is used for Ethernet communication, so we can use it to add an additional check and include.

Tested on WT32-ETH01 and regular ESP32 chip with WiFi.