Tools for wrapping build tasks in CLIs.

Like `cli-matic`, this provides a higher-level wrapper over
`clojure.tools.cli`. However, `trident.cli` is designed specifically for
making build tasks easily reusable (including tasks not defined using
`trident.cli`).

Most of the time you will need only [[make-cli]]. See the [[trident.build]]
source for some non-contrived example usage.

Utility library. Docstrings are omitted for simple functions; read the source
to see what they do.