Stack is missing cabal's --extra-framework-dirs

I'm working on a macOS-specific package that needs to link against frameworks. With cabal, I need to configure like this:

```bash
$ cabal configure --extra-framework-dirs=/System/Library/Frameworks/ ...
```

But stack seems to have no equivalent option. I'm sure it's possible to get around this with --ghc-options, but it'd be nice to be able to stick this in stack.yaml, just like extra-lib-dirs. I'd imagine that extra-framework-dirs works just like extra-lib-dirs and that this would be easy to add, but I don't know for sure.