Update obsolete message for IHandedInteractor

Author: keveleigh

org.mixedrealitytoolkit.core/Interactors/IHandedInteractor.cs

@@ -9,13 +9,13 @@ namespace MixedReality.Toolkit
     /// <summary>
     /// An interface that all interactors with the concept of handedness implement.
     /// </summary>
-    [Obsolete("Use handedness from IXRInteractor instead.")]
+    [Obsolete("Use " + nameof(IXRInteractor) + " instead.")]
     public interface IHandedInteractor : IXRInteractor
     {
         /// <summary>
         /// Returns the Handedness of this interactor.
         /// </summary>
-        [Obsolete("Use handedness from IXRInteractor instead.")]
+        [Obsolete("Use " + nameof(handedness) + " instead.")]
         public Handedness Handedness { get; }
     }
 }

org.mixedrealitytoolkit.input/Interactors/GazePinch/GazePinchInteractor.cs

@@ -196,7 +196,7 @@ private bool IsTracked
         #region IHandedInteractor
 
         /// <inheritdoc />
-        [Obsolete("Use handedness from IXRInteractor instead.")]
+        [Obsolete("Use " + nameof(handedness) + " instead.")]
         Handedness IHandedInteractor.Handedness
         {
             get

org.mixedrealitytoolkit.input/Interactors/HandJointInteractor.cs

@@ -61,7 +61,7 @@ public GameObject ModeManagedRoot
         #region IHandedInteractor
 
         /// <inheritdoc />
-        [Obsolete("Use handedness from IXRInteractor instead.")]
+        [Obsolete("Use " + nameof(handedness) + " instead.")]
         Handedness IHandedInteractor.Handedness
         {
             get

org.mixedrealitytoolkit.input/Interactors/Poke/PokeInteractor.cs

@@ -106,7 +106,7 @@ xrController is ArticulatedHandController handController &&
         #region IHandedInteractor
 
         /// <inheritdoc />
-        [Obsolete("Use handedness from IXRInteractor instead.")]
+        [Obsolete("Use " + nameof(handedness) + " instead.")]
         Handedness IHandedInteractor.Handedness
         {
             get