Enhacement: more informative error regarding usage of Reilly model

[arashgmn]

nr isn't defined for Reilly2016 model.

As it needs the further development of Axon class, I suggest adding the following to the if the statement of Reilly2016 for an informative message.

print('The "Reilly2016" model is not supported yet for the neural array. Needs further development of the Axon class.\nPlease use "McIntyre2002" model instead.')  
break

OSS-DBS/OSS_platform/Neural_array_processing.py

Line 221 in c01fa2e

nr['deltax'] = fib_diam * 200.0 # from 1 to 2 micrometers