Add file I/O auto instrumentation for FileHandle

[philipphofmann]

Description

As pointed out in the docs, we currently don't support automatic instrumentation for file IO with FileHandle. Please upvote if you would like to have this feature.

[philprime]

As this should mostly be a duplicate of the current swizzling of NSData and NSFileManager, with manual tracing like we offer for FileManager and Data, I asked Cursor to create a draft or swizzling NSFileHandle and implement methods for FileHandle. The PR would still require more time, but it's low priority so I'll keep the changes in philprime/file-handle-tracing but not work on this now.