code: public static IntSupplier topAligned(IChild<?> owner, int spacing)
  	{
  		return () -> {
  			return Padding.of(owner.getParent()).top() + spacing;
  		};
  	}
docs: Positions the owner to the top inside its parent.<br>
  Respects the parent padding.
  
  @param spacing the spacing
  @return the int supplier