HKQuantityTypeIdentifier does not include InsulinDelivery

[pravincar]

Steps to Reproduce

1. Assign a variable to the value HKQuantityTypeIdentifier.InsulinDelivery

Expected Behavior

The enum HKQuantityTypeIdentifier should include the value InsulinDelivery. https://developer.apple.com/documentation/healthkit/hkquantitytypeidentifier

Actual Behavior

HKQuantityTypeIdentifier does not contain a definition for InsulinDelivery

Environment

Xamarin Forms 3.0.0.530893
Xamarin iOS Version: 11.12.0.4 (Visual Studio Community)

[dalexsoto]

Indeed it is missing.

[spouliot]

fixed with #4786