Add the following features:

* Automation
  This feature defines proxy classes to use internal classes of the namespace System.Management.Automation.
  - System.Management.Automation.ArgumentTypeConverterAttribute
  - System.Management.Automation.ExecutionContext
  - System.Management.Automation.MshMemberMatchOptions.cs
  - System.Management.Automation.ParseTreeNode
  - System.Management.Automation.PSMemberInfoCollection
  - System.Management.Automation.PSMemberInfoIntegratingCollection
  - System.Management.Automation.PSMemberInfoInternalCollection
  - System.Management.Automation.PSObject
  - System.Management.Automation.Runspaces.ConsolidatedString
  - System.Management.Automation.SessionStateInternal
  - System.Management.Automation.SessionStateScope
  - System.Management.Automation.TypeAccelerators

* Mixin
  This feature defines extension methods to publish private members and shortcuts for commonly-used flow.
  - System.Management.Automation.ArgumentTransformationAttribute
  - System.Management.Automation.ArgumentTypeConverterAttribute
  - System.Management.Automation.LanguagePrimitives
  - System.Management.Automation.MshMemberMatchOptions
  - System.Management.Automation.PSMemberInfoCollection
  - System.Management.Automation.PSMemberInfo
  - System.Management.Automation.PSNoteProperty
  - System.Management.Automation.PSObject
  - System.Management.Automation.PSVariable
  - System.Management.Automation.PSVariableProperty
  - System.Management.Automation.Runspaces.Runspace
  - System.Management.Automation.ScriptBlock