message: mouse control tweak
  always do camera center/focus on right click
diff: @@ -18,7 +18,9 @@ const Trigger = Binding.Trigger;
  const DefaultFocusLociBindings = {
  clickCenterFocus: Binding([
  - Trigger(B.Flag.Primary, M.create())
  + Trigger(B.Flag.Primary, M.create()),
  + Trigger(B.Flag.Secondary, M.create()),
  + Trigger(B.Flag.Primary, M.create({ control: true }))
  ], 'Camera center and focus', 'Click element using ${triggers}'),
  clickCenterFocusSelectMode: Binding([
  Trigger(B.Flag.Secondary, M.create()),
  