Optional modules that may be attached to core contracts as needed.
bases: Inherited base contracts used by modules.
STModuleBasecontracts. All modules must inherit one of these base contracts, or implement their functionality.
bases/Checkpoint.sol: Base module for creating a single balance checkpoint for a token.
Dividend.sol: Token module for paying out dividends denominated in ETH.
SecurityTokenmodule for issuing vested stock options.