[Tizen] Fix attribute value issues for Tizen extension

AttributeFilter, CompositeFilter, SimpleCoordinates and SortMode
interfaces have been refactored.
Setters, getters and additional validation have been added.

BUG=XWALK-2308

Change-Id: Ie12aba676a266eb926f987e938dbc8349ce7a943
Merge pull request #423 from sstolinski/XWALK_2308

[Tizen] Fix attribute value issues for Tizen extension