Updated Base Pointer Controller Pointer Name Property with a backing field, in case the gameObject reference is destroyed when attempting to get the pointer name

Author: StephenHodgson

Assets/MixedRealityToolkit-SDK/Features/UX/Scripts/Pointers/BaseControllerPointer.cs

@@ -190,11 +190,17 @@ public uint PointerId
             }
         }
 
+        private string pointerName = string.Empty;
+
         /// <inheritdoc />
         public string PointerName
         {
-            get { return gameObject.name; }
-            set { gameObject.name = value; }
+            get { return pointerName; }
+            set
+            {
+                pointerName = value;
+                gameObject.name = value;
+            }
         }
 
         /// <inheritdoc />