Assertions for command-line dependencies

Flattens deeply-nested hashes into sparse hashes

Distro: distributed work, simply.

Implements is a tol for building modular libraries and tols as interfaces, for implementing those interfaces, and ensuring that consumers are able to load the best available implementation at runtime.

Simple AES-256-driven encryption

The `Type` gem provides tools for type-validation and type-casting, and is useful for ensuring well-formed messages are passed to external APIs/