Merge topic 'text-tight-bounding-box'

31728f4e Baselines for text labels fixes.
9a3b037e BUG: lastPos = firstPos + size - 1.
87f9baa6 Shift quad position with one pixel to fix multiLineText test.
85812c7b Use NormalizedDisplay as for displaying the text.
06701a4d BUG: Use of double LineSpacing results in one pixel off errors.
64d9dd90 BUG: Ascent, descent are positions from the baseline.
350ff2a5 ENH: Add vtkTextProperty::UseTightBoundingBox to center a label to anchor.
9a0904d6

 BUG: n lines of text include (n-1) interline spaces.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1925

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