Add Arduino Edge Control Board support

[maxgerhardt]

Closes #154.

[maxgerhardt]

CI fail

/home/runner/.platformio/packages/framework-arduinoadafruitnrf52/libraries/Adafruit_nRFCrypto/src/Adafruit_nRFCrypto.cpp:36:4: error: #error CryptoCell CC310 is not supported on this board
   #error CryptoCell CC310 is not supported on this board
    ^~~~~

in adafruit_feather_nrf52832 for arduino-bluefruit-bleuart example is not caused by this PR.

[maxgerhardt]

..but I patched it regardless.