0030728: Visualization - using one implementation of highlight/unhighlight in context
(cherry picked from commit
36b87936acf5a89d573663b5e8d086a4a4a084d3)
# Conflicts:
# src/AIS/AIS_InteractiveContext_1.cxx
(cherry picked from commit
7fc133f086611b4f4e36b658f99c29012da921d1)
# Conflicts:
# src/AIS/AIS_InteractiveContext_1.cxx
(cherry picked from commit
a06b8e8308efef642cc5c2c5ce6261aae276d530)
(cherry picked from commit
0d5a72ab1638e4ed3d3eb72b15430ee7337f69bc)
# Conflicts:
# src/AIS/AIS_InteractiveContext.cxx
(cherry picked from commit
9e9c9c84bdc5fa579105190b12ec82fbf8db3081)