Fixed visibility handling of components created at runtime.
Fixed visibility handling of components created at runtime.

We used to force all components to Visible = False, and iterated this to
child components. Now all components default to Visible = True (just like
the global default), and hiding child components, you only need to hide
the parent (visible = False) - no iteration needed.

wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI