Avoid initializing ApplicationModulesRuntime unless necessary #375
Description
The ApplicationListener registered in SpringModulithRuntimeAutoConfiguration always triggers the initialization of the consumed ApplicationModulesRuntime, even if no ApplicationModuleInitializer instances are registered.
Furthermore, the initializing code for ApplicationModulesRuntime eagerly triggers the initialization of the ApplicationModulesBootstrap, despite AMR works with a lazily initialized ApplicationModules instance.