Scalar bar features

1. Add finer Annotations control
Annotations in scalar bar now have a it's own Text Property, allowing change to font, color, size...

2. Add positibility to dislay Above/below ranges
Scalar now have the possibility to display a dwatch for above and below value,
to be used in conjonction with vtkLookupTable Above and Below feature

3. Allow to use unconstrained font Size for label annotations and titles
Title and other scalar bar texts used to be constrained by the scalar size
by using this feature, it is now possible to have text of any size without resctriction
1 job for ScalarBarFeatures
Status Job ID Name Coverage
  External
passed kwrobot-commit-check