Added missing Q_Object macro for a couple qt event players.

The CTK QtTesting repo has some changes that uses the qt metaObject
class name to check whether an event player is already in the players
list. So if an event player class is not declared as Q_Object, the
metaobject will just use its superClass name, and this is why these
paraview event players are missing from the players pool, which
causes many paraview tests to fail.

Change-Id: I75e1a25a55587b68efb59b1c2bfb420fee8c0125
Update VTK for: Fix KdTree::GenerateRepresentation and add test.

Change-Id: Ibea42e503c876437e068c9df066bc66940848968
Merge topic 'qtEvent_player_fix' into next

26159a13 Added missing Q_Object macro for a couple qt event players.
Merge topic 'kdtree-repr' into next

bfef3e9b Update VTK for: Fix KdTree::GenerateRepresentation and add test.
Upgrade pointer to vtkqttesting.

Set/remove focus when setting a string to a control.

Change-Id: I0d475bbb0862f8e6b89ed083909ab435dd887c54
Changed comment for PythonView::Script.

Change-Id: I3c82f45fd34292d2756e172d0b1c0178296af97d
Merge topic 'python-view-15122' into next

adbfa921 Changed comment for PythonView::Script.
fef22505 Upgrade pointer to vtkqttesting.