Hide Geometry Behavior Should be Changed

[bento.2610]

"Hide" (V by default) should hide selected body, but not when the body selected is the only one in a component, ini that case, it should hide the whole component instead. This change would prevent us from having to open all drop-downs until we get to 'bodies' to unhide geometry (at least when working on a project with single body components).

Basically what i'm saying is:

input Hide_Geometry {
        if Selected_Body's_Father_Component's Number_of_Bodies = 1 {
                hide( Selected_Body's_Father_Component );

        } else {
                hide( Selected_Body );
        }
}