TTN ESP32 BLE Provisioning

This application allows a LoRaWan esp32 board to register the connection keys to The Things Network server.On the ESP32 card, use the TTN_BLE_esp32 library.successfully tested on Heltec cardssee the site https://github.com/rgot-org/TheThingsNetwork_esp32.

At the first launch accept the activation of bluetooth and location for the application. You get a white screen. restart the application now bluetooth is activated and the application works.