Text Selection Popup Fade-in/Fade-out animation

* Popup creation refactor to keep track of enabled buttons during animation show/hides and prevent reconstruction when Relayout occurs but not change in Popup.
* popup-fade-in-duration Property added.
* Popup fades from 0 to 100 opacity
* 2.4 Core_VI-qHD_REF State Toast opacity duration is 250md from 0-100. Popup follows Toast guideline.
* Toolbar Property Name fix

- Toolbar not getting MAX_SIZE from json file so TextSelectionPopup is storing max size and applying to Toolbar

Change-Id: Ied0972b8c809b7a3c9dcda2dd77ae2ca35c89382
Signed-off-by: Agnelo Vaz <agnelo.vaz@samsung.com>