stealer

Calculate the preflop steal range in NLHE.

Todo List

• Add a heatmap to show every hand's EV.
• Add a user interface.
• Find a more accurate version of hand vs hand win rate.
• Fix a bug in hero_3b_fold_4b_ev() and ev_call().
• Add a function to convert "99+, AKs+, AQo+" to range.