0030726: Visualization - change Selected state of owner in AIS_Selection

0030726: Visualization - change Selected state of owner in AIS_Selection

# IsHilighted by owner should use the same logic like when it is highlighted. IsSelected is used for selection state, not highlight.
#
# Without this correction, object is never shown as selected by click (Select(bool)):
# if (!HighlightStyle (theOwner, aCustomStyle) ||
#    (!aCustomStyle.IsNull() && aCustomStyle != anObjSelStyle))
# IsSelected is already true, so the highlight style is equal to selection style, nothing to do.