Record object is unnecessary

[aehlke]

As far as I can tell, getRecord and the Record type is unnecessary and we can simply instantiate a CKRecord each time we upload

IceCream also doesn't save the CKRecord

Removing this saves a LOT of storage. I've done so in my fork and it seems to work ok. But maybe I'm missing something...

[aehlke]

Oh I was wrong it's needed for conflict resolution (serverChangeTag)

I've added it back in my fork but I also started compressing the encoded record with facebook's Zstd using a dictionary based on the data records for better ratio

Zstd was able to compress each down to about 60 bytes per! lzfse was compressing to around 1500 bytes.