[FR] - Nutrition/Dietary data #327

Hey folks! Thank you for maintaining a project like this, I'd love to contribute but I am quite bad at objective C (learning some swift when the time comes).

I would like to request support for the rest of the nutrition/dietary data. I can see Protein, Water, Fiber, and other bit and bytes there, but there is a lot missing.

For example, we can request permission for all the below but are not able to pull the data from them:

AppleHealthKit.Constants.Permissions.Biotin
AppleHealthKit.Constants.Permissions.Caffeine
AppleHealthKit.Constants.Permissions.Calcium
AppleHealthKit.Constants.Permissions.Chloride
AppleHealthKit.Constants.Permissions.Cholesterol
AppleHealthKit.Constants.Permissions.FatMonounsaturated
AppleHealthKit.Constants.Permissions.FatPolyunsaturated
AppleHealthKit.Constants.Permissions.FatSaturated
AppleHealthKit.Constants.Permissions.Folate
AppleHealthKit.Constants.Permissions.Iodine
AppleHealthKit.Constants.Permissions.Iron
AppleHealthKit.Constants.Permissions.Magnesium
AppleHealthKit.Constants.Permissions.PantothenicAcid
AppleHealthKit.Constants.Permissions.Phosphorus
AppleHealthKit.Constants.Permissions.Potassium
AppleHealthKit.Constants.Permissions.Riboflavin
AppleHealthKit.Constants.Permissions.Sodium
AppleHealthKit.Constants.Permissions.Thiamin
AppleHealthKit.Constants.Permissions.VitaminA
AppleHealthKit.Constants.Permissions.VitaminB12
AppleHealthKit.Constants.Permissions.VitaminB6
AppleHealthKit.Constants.Permissions.VitaminC
AppleHealthKit.Constants.Permissions.VitaminD
AppleHealthKit.Constants.Permissions.VitaminE
AppleHealthKit.Constants.Permissions.VitaminK

Is it possible to add support for those as well?

Thank you again.