Florian2007 rate XOR experiments far too slow.

[coledie]

Currently, the rate XOR experiments in florian2007.ipynb are far too slow at about 240s / run. This needs to be ~doubled.

• Get time to <= 120s.

Improve speed of STDP implementation.

• Remove decay multiplier and put all into the where
• Move clip to weights and speed up // weights get clipped too many times
• Force spike_log and inhibitory types to be respected
• Reorganize STDP math for fastest matrix matrix
• Switch from idx lists to masks

Parameter Normalization

• Normalize spike_log so that spike_log[-1] always is ??? and is of length ??? in network, synapse, ...
• Normalize inhibitory location parameter usages(bool with 1=? and 0=?) in neurons, synapses, weights, ...
• Streamline the bool and float copy of spike log in network.tick - ensure allows variable spike magnitudes for readouts and rewards