Start of strategy charting tool

[DanielVF]

Tool to exercise strategies from the outside and chart the results.

The long term idea is to be able to make a small definition class on how to manipulate the strategy, and then have the same reporting code be able to run.

To use:

# Have a node:fork already running, then
brownie run strategy_report run_simulations BalancerRethEth
brownie run strategy_report run_report BalancerRethEth

The code currently has plenty of room for refactoring, but I figure we'll do that as we add our second strategy to testing.

[DanielVF]

This version doesn't balance the pool if it is imbalanced from the start right?

It does not.