Changes in branch ESP32-v3.0 (disable/enable BLE and Wifi)

@wilberforce, lets go to github for next changes, thats ok for me.
You mentioned somewhere about hot chip with BLE supported firmware.
Is this still the case if you disable BLE ?

Short and quick answer here.

• message will go away with changes for UART.
  
• NRF object and Bluetooth object are still available. Still searching for a nice idea, .... As Gordon mentioned, there would be a backdoor to access them even they are set to nothing. And adding an "IfBLEenabled()" to all functions looks like an oversized solution to me.