Olimex ESP32-POE(-ISO) Ethernet & Wifi at the same time

**Describe the problem you have/What new integration you would like**

Possibility to enable Ethernet, Wifi and Bluetooth, on this particular Boards at the same time.

**Please describe your use case for this integration and alternatives you've tried:**

While the Olimex ESP32-POE seems to be capable, it is not possible to enable Ethernet Component and Wifi Component at the same time within ESPHome.
ref: https://github.com/OLIMEX/ESP32-POE/tree/master/SOFTWARE/ARDUINO/ESP32_PoE_Ethernet_WIFI_test

**Additional context**

I would like to use Olimex ESP32-POE Boards as Wifi AP while the devices are connected and powered via POE-Ethernet. (so: using Ethernet as an uplink; the ESP32-POE as a bridge)
If there is enough memory left, using it as a Bluetooth proxy would be greate, but not the main concern of this FR.