Hi

By default cbindgen exports everything, and a blacklist can be added by setting exclude in the [export] section.

In my current use, it would be great if I could set a whitelist instead of a blacklist, as I'd like to export subsets of the crate depending on the compilation target.

In general I like explicit lists (whitelist) over implicit lists (blacklist).

We also tried using feature attributes to enable/disable functions based on the target, but that did not seem work.

cc @NickeZ