implement spiking neural network

I was inspired by this sometime back: https://www.nature.com/articles/srep21142
I got to talk to the lead developer, who sent me the source code on this.

[SpikingNeuralPlanning_V1.0_2016April26 (1).zip](https://github.com/BrainJS/brain.js/files/1615945/SpikingNeuralPlanning_V1.0_2016April26.1.zip)

I did get permission before sharing, here is the conversation:

Elmar:
>Dear Robert,
>here is an implementation of the neural model: http://www.ausy.tu-darmstadt.de/uploads/Team/ElmarR%c3%bcckert/SpikingNeuralPlanning_V1.0_2016April26.zip
>Let me know if you have any questions or comments.
>Best wishes, Elmar

Me:
>May I share this code?

Elmar:
>Sure but please cite the paper if you use the code for publications.
>Best, Elmar