Displays your nickname defined in nickname.txt
on display and uses the top right LED in green
to output the nickname in morse code
	
enhancements
  - using the RIGHT LED so no interference and
    with the display of the personal_state
  - shows GREEN instead of red (to avoid confusion 
    with personal state)

Based on
  - morse.py by Card10-Team)
  - nickname.py by Card10-Team
  - micropython-morsecode by mampersat

updates by DK2VT