Include graphics objects with hidden handles in axes limit calculation (bug #63095). * libinterp/corefcn/graphics.cc (get_children_limits): Get handles to all axes children including those with hidden handle visibility. Add BIST. * libinterp/corefcn/graphics.in.h (text::update_position): Do not automatically change "zliminclude" property. Axes labels are implemented as text objects, and we don't want their extent to be included in the axis limit calculation.

classdef class_bug55766

  properties
    testprop = 0;
  end

  properties (Access = public)
    publictestprop = 0;
  end

  properties (Access = protected)
    protectedtestprop = 0;
  end

  properties (Hidden)
    hiddentestprop = 0;
  end

  properties (Hidden = true)
    anotherhiddentestprop = 0;
  end

  properties (Hidden = false)
    notahiddentestprop = 0;
  end

end