Imported Resources don't provide a finalizer

Currently, projections for imported resources implement `IDisposable`, but they do not provide a `finalizer`. This means that if the user forgets to manually dispose the resource, its `[resource-drop]` function is never called.

I believe this is incorrect, and the resource should provide a finalizer that calls the resource's `[resource-drop]` function.

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Version:
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Start by locating the generated projections for imported resources and the IDisposable implementation described in the issue. Trace how the resource's [resource-drop] function is handled, then verify that an undisposed projection invokes it through a finalizer; the issue provides no file or test entry point.

Written by the indexing model from the issue text.