Use `.swift-format` file in workspace root

[abegehr]

I have a .swift-format-file in my repo's root folder (where I also have my .xcworkspace file. when using swift-format from the command line, it automatically uses the .swift-format-file. However when using X-SwiftFormat from Xcode, it uses the configuration set in the X-SwiftFormat app. It would be great if X-SwiftFormat would also use the .swift-format file (if exists).

[doozMen]

This would also my preference or just have the ability to import a json file