add note about motionbuilder

Author: vkovec

Assets/FbxExporters/Editor/FbxExporter.cs

@@ -945,6 +945,8 @@ protected int ExportComponents (
 
                 // Default inheritance type in FBX is RrSs, which causes scaling issues in Maya as
                 // both Maya and Unity use RSrs inheritance by default.
+                // Note: MotionBuilder uses RrSs inheritance by default as well, though it is possible
+                //       to select a different inheritance type in the UI.
                 // Use RSrs as the scaling inhertiance instead.
                 fbxNode.SetTransformationInheritType (FbxTransform.EInheritType.eInheritRSrs);