Merge topic 'clipclosedsurface_features' into release

535a213b Apply vtkClipClosedSurface flags to both outputs
b88bfaaf Test for clipping closed surface with InsideOut and multiple planes
6a1d3b80 Add docstring note about convex corners in vtkClipClosedSurface
99c13d7f Keep the generate clip face logic in separate if blocks
70f2e9d3 Release note for the vtkClipClosedSurface features
14db64c9 Test for clipping closed surface with InsideOut and GenerateClipFaceOutput
3a2f71ab Provide clipped triangulated face as output on the vtkClipClosedSurfaceFilter
c843a8db Provide an InsideOut flag for vtkClipClosedSurface

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Reviewed-by: David Gobbi <david.gobbi@gmail.com>
Merge-request: !10594