Need to cleanly define "simple" strategy

[gsdriver]

There are currently four levels of strategy: easy, simple, advanced, and exactComposition. Easy is implemented against a set of 9 easy-to-follow rules. Advanced is fully implemented against the charts at WizardOfOdds based on number of decks and different rules. Exact Composition is a work in progress (as of version 1.2.0) but involves implementing the card-by-card rules at WizardOfOdds, so is well-known work.

Simple is meant to be a set of rules for intermediate players with a set of rules somewhere between easy and advanced. While there are some rules that are marked as advanced-only, there should be a well-defined philosophy about what constitutes a "simple" strategy for the player.