Added param to set_stimulus method so that it is actually requesting AER encoding of the test rather than going with the default pseudo-random generation of spikes... This was a major whoopsie on my part
Corrected timing and ensured spike times are rounded to the same default precision as the simulator - should change this to be drawn from the simulation dt in config file
Corrected import and call of AER encoder, and noted where I need to make changes to the path registration to actually get the data to be encoded.