add functions for creating mock cont signal when no .bin file to axonarawio (rather than depend on spikeextractors)
add functions for creating mock cont signal when no .bin file to axonarawio (rather than depend on spikeextractors)

apdavison/python-neo,samuelgarcia/python-neo,INM-6/python-neo,NeuralEnsemble/python-neo,JuliaSprenger/python-neo