[iOS] MSCoreDataStore issue with system properties available
[iOS] MSCoreDataStore issue with system properties available

-[MSCoreDataStore systemPropertiesForTable:] would always return
MSSystemPropertyNone regardless of properties available in local
store

Azure/azure-mobile-apps-ios-client,Azure/azure-mobile-apps-ios-client,Azure/azure-mobile-apps-ios-client,Azure/azure-mobile-apps-ios-client