IExclusiveMode tools do not affect the other hand

[mtschoen-unity]

When this feature was first implemented, the BlinkLocomotionTool was a two-handed tool, meaning that only one instance existed across both hands. Now that this is not the case, you can locomote with the opposite hand when an IExclusiveMode is active.

Selections can be made with the opposite hand, and while the TransformTool is deactivated, the manipulator doesn't go away when an IExclusiveTool is selected.