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Fix loss of precision in vtkPlanes::SetFrustumPlanes

Andras Lasso requested to merge lassoan/vtk:vtkplanes-setfrustumplanes-precision into master

vtkPlanes::SetFrustumPlanes(double planes[24]) method got plane positions in double, but the vtkPoints object that stored them used just floats. This caused loss of precision and warning "Common/Core/vtkAOSDataArrayTemplate.txx:132:38: runtime error: 1e+299 is outside the range of representable values of type 'float'" in TestLabelPlacementMapper.

Fixed by creating vtkPoints object using vtkPoints::New(VTK_DOUBLE).

This should address the test warning reported here: !5567 (comment 580012)

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