Support Tizen 9.0

[JSUYA]

Tizen studio 6.0 has been released(Release note).
This update includes support for Tizen 9.0. and deprecated all Tizen profiles below 6.0.
Since flutter-tizen already supports it from version 6.0, there is no impact and we will review some features.

[JSUYA]

In the test of webview_flutter_tizen(EWK) built with tizen 9.0 binary and api-version 9.0, I checked that mouse events do not work properly.

[JSUYA]

In the test of webview_flutter_tizen(EWK) built with tizen 9.0 binary and api-version 9.0, I checked that mouse events do not work properly.

The web framework team has found a missing commit in tizen 9.0. The commit has been merged into tizen 9.0 (tizen profile on raspberrypi), but it will take some time for it to be applied in the TV profile.

[JSUYA]

webview_flutter (EWK) does not display pages properly on tizen 9.0 profile (raspberry pi). Logs related to page loading are printed, and keyboard input allows moving to other pages, but only the background of the page is drawn and no elements are drawn.