Implement logging utility

Users should be able to enable basic logging by doing something like `app.enable.logging('basic')`

`app.enable` would act as an access point to functions that would enable various feature sets as they are developed. `app.disable` could alias to those methods and pass a required second argument that would indicate that they are being disabled.

No files, tests, or concrete entry points are named. Start by locating the app API and the existing enable/disable structure, then clarify the intended behavior for basic logging and how completion will be verified.

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