true if inReference is contained by this reference.
Remarks
This method is used by the calculation engine to determine if the passed in reference is fully contained by this reference. Each element in this reference is compared with the corresponding element in the input reference. If the identifiers are the same, and if this scope entirely contains the input scope, then the input reference is a proper subset this reference.
Requirements
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+
