[crazy][hobby][spam] Automated Reverse Engineering

[k]

I've pasted a training function into the .ipynb in
https://github.com/xloem/techsketball/ .  it's not mutated into a .py
yet.
i've also added mmaping functionality to the data generator so data
larger than ram can be used and cached between tests.  it is not used
yet.
i code with dense bugs due to spasms i navigate, so the next step is
roughly rote debugging of the .ipynb