Templatize Id and implement Deref.
Updated NSArray to work with new Id.
Updated NSDictionary to work with the new Id.
Implemented Map for NSDictionary.
Updated NSEnumerator to work with the new Id.
Removed retain and release methods from Id.
msg_send converts the recipient to a pointer.
Removed Messageable implementation for Id.
Messageable is no longer unsafe.
Made objects not copyable.
Made an objc crate.
Added NSObject tests.
Replaced Messageable with NSObject for NSDictionary.
Id is now exported from the crate root.
Moved ClassName into a new module.