Add a rule like `no-unwrapped-debug-code` (name TBD) to disallow shipping test/dev-only code to production

[gitKrystan]

It's pretty common in our app to accidentally do:

import { isTesting } from '@embroider/macros'; // or isDevelopingApp

if (isTesting()) { /* do something expensive */ }

which is not stripped in production builds like this would be:

import { isTesting, macroCondition } from '@embroider/macros';  // or isDevelopingApp

if (macroCondition(isTesting())) { /* do something expensive */ }

I propose we allow people to lint against this. An autofix would be even nicer.

[gitKrystan]

It might be nice to allow people to register their own macros that must be stripped also