[WIP] Output Affected Module Paths

[ivanalvarado]

Summary

This pull request introduces a new Gradle task, outputAffectedModules, that provides the paths of affected modules. The paths are output in two locations:

1. Console Output:

> Task :outputAffectedModules
Affected Modules:
:
:sample-app
:sample-core
:sample-jvm-module
:sample-util
Affected Modules written to <absolute/path/to>/AffectedModuleDetector/sample/build/affected_modules_paths.txt

2. File Output: Written to build/affected_modules_paths.txt, the root project directory.

Request for this was made in this ASG thread.

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