Add more icon names

Author: keveleigh

org.mixedrealitytoolkit.uxcore/FontIcons/MRTKFontIconSetDefinition.asset

@@ -94,3 +94,13 @@ MonoBehaviour:
   - Edit
   - Folder
   - Alarm Off
+  - Warning
+  - Info
+  - Error
+  - Keyboard
+  - Cancel
+  - Dialpad
+  - Photo
+  - Save As
+  - Close
+  - Cut