Detect when databinding or viewbinding are enabled but don't need to be

A user has reported that the dependency `androidx.databinding:databinding-common` is reported as unused. This dependency is automatically added (I assume) when `dataBinding.isEnabled = true` is set. I need to learn which dependencies are added, and if it's possible to determine databinding isn't being used, and so therefore we can accurately recommend it be disabled.

Start by tracing the plugin's Android dependency-analysis path and inspect how automatically added androidx.databinding:databinding-common dependencies are classified. Determine which databinding and viewbinding dependencies are added, then establish how the plugin could tell whether those features are unused and what recommendation should be reported.

Written by the indexing model from the issue text.