Fix to use world color for the Fade Transition.
Fix to use world color for the Fade Transition.

 - In the current Fade transition implementation, set mOpacity and current property of target control
   for the transition animation.
 - It could create wrong value, for example,
   for the fade out transition the input mOpacity could be larger than
   the value of target opacity.

Change-Id: I7a55fdb7775a4a9f183360c0eddfb3ca88076287
Signed-off-by: seungho <eb41b4b4ab7814234e401c31ebc0c41202488340@samsung.com>

dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit