bobcat-features
bobcat-features can be used for feature-driven development using a macro with
bobcat-storage:
bobcat_feature!;
Would create a macro that accesses the storage slot for the feature
"bobcat.features.internal_balances" after taking -1 so as to take it off the curve, so
uint256(abi.encodePacked("bobcat.features.internal_balances")) - 1. If true is set, to
the feature flag, then the code associated executes.
IF_FEATURE_INTERNAL_BALANCES!;