bmp280 integration while enabling LoRaWAN

[RoldSI]

Currently, the Node software can successfully send sensor data from all sensors but the BMP280.
When trying to read sensor data, not useful Serial feedback is sent to a connected computer and not joining attempt is made by the Node.

[RoldSI]

@isiko It might be possible that this is caused by the already known serial communication problem (usb and radio on ESO8266). However, as the bmp280 can be operated with either spi or i2c (if I remember correctly), this issue should be easier to solve. At least if my assumption that i2c and spi can be used simultaneously on an ESP32 is correct.