Native library-only aars always show up as unused

[ZacSweers]

Build scan link

Plugin version
0.56

Gradle version
6.6

Android Gradle Plugin (AGP) version
4.0.1

Describe the bug
Similar to proguard-only artifacts, aars that contain only native library files always are reported as unused

To Reproduce
Steps to reproduce the behavior:

Example aar https://amazon-chime-sdk-android.s3.amazonaws.com/media/0.6.1/amazon-chime-sdk-media-0.6.1.tar.gz

Expected behavior
Unsure if the plugin should try to detect loading native libraries in the aar, but at least not suggesting their removal would be a good start

Additional context

[ZacSweers]

The library associated with the above link is amazon chime https://github.com/aws/amazon-chime-sdk-android

[autonomousapps]

It might be challenging to determine if libraries such as these are in fact "unused", so I may have to treat them like libraries that include service loaders -- that is, never call them unused.

I'm considering enhancing the reporting so that "whitelisted" dependencies are listed for a human to double-check.

[autonomousapps]

@ZacSweers To save me from learning how to use this SDK, can you provide a snippet of sample code that ought to indicate "this is used"? I'd like to write a(n accurate) failing test to get started.

[ZacSweers]

Here's how it loads them https://github.com/aws/amazon-chime-sdk-android/blob/b43e22c435eab388ac1258669b0011c29c747fda/amazon-chime-sdk/src/main/java/com/amazonaws/services/chime/sdk/meetings/internal/audio/AudioClientFactory.kt#L18-L19