Model short Leios over large networks

[SupernaviX]

This effort is to write a model of "Short Leios" which runs against a realistic (several-thousand node) model of the real network. Short Leios is a simpler version of the full Leios protocol (without some historical state), which has lower throughput than Full Leios but is easier to understand. That makes it an ideal first target to model.

The goals are

• use visualizations of the sim's output as a learning tool, to refine human intuition around the protocol
• understand the resource requirements to run a node in this network
• experiment with the effect of changing parameters