Update modules-control-panel.adoc

[ZacharyKlein]

Indicate how to add the control panel module

[melix]

Thanks for the suggestion. I would however prefer that we have an intro explaining what this snippet is about. In particular, we don't document the integration with Gradle or Maven plugins in that doc.

A couple suggestions:

• either add a link to the Gradle/Maven plugins doc, e.g this section: https://micronaut-projects.github.io/micronaut-gradle-plugin/latest/#_configuring_the_test_resources_plugin and explain that the control-panel module has to be added
• or explain for both plugins how to do it

Ideally, for the Gradle snippets, you should use KnownModules.CONTROL_PANEL, not the string.

[sdelamo]

@alvarosanchez @melix should should add this to starter when someone adds control-panel feature? https://github.com/micronaut-projects/micronaut-test-resources/pull/476/files

[melix]

That's the control panel for the test resources module itself. So you could use the control panel in test resources without using control panel in your own app and vice-versa. Maybe the easiest is actually to include the control panel by default in starter when test resources are enabled, it's useful anyway.

[alvarosanchez]

include the control panel by default in starter when test resources are enabled

This is what I agree with

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