RFX-868 software release

RFX-868 software is different compared to RFXtrx868/RFX868XL firmware! RFXflash cannot be used. Espressif utilities must be used to flash new software in the ESP32-S3 controller of the RFX-868. See the RFX User Guide for details. Software release 8001 13-01-2025 Initial release with all functions of…