[Tizen IVI] Support landscape window orientation by default

Before the change 'NativeAppWindowTizen' hardcoded portrait
orientation to be the default one, however (unlike the mobile
devices) the default window orientation on IVI devices is
landscape. Thus the wrong window transformation was applied
causing bugs, e.g. XWALK-1313.

This patch adds support (not complete yet, but enough for most
of the applications) for the default landscape window orientation.

BUG=XWALK-1313
Merge pull request #1815 from pozdnyakov/Orientation_for_IVI

[Tizen IVI] Support landscape window orientation by default