feat: Add OCKHealthKitOutcome to OCKStore

[cbaker6]

• Renamed OCKObjectCompatible.swift -> OCKVersionedObjectCompatible.swift to match protocol name
• Made OCKHealthKitOutcome conform to OCKVersionedObjectCompatible
• Add OCKHealthKitOutcome to OCKEntity

[erik-apple]

This looks great! I’ll look over this soon! Thank you!

[cbaker6]

@erik-apple I added some missing properties to OCKHealthKitOutcome. Though some of these aren't used currently, I made them match OCKOutcome as I suspect they will be needed in the future. I didn't physically add OCKHealthKitOutcome to CoreData as I'm guessing there may be another linkage along with more discussion to handle this properly.

I also marked some important properties as internal in the concrete OCK objects. I did this because I believe they were internal before the winter update and they probably shouldn't be manipulated by developers. Let me know if you need me to make some adjustments.