Initialize Tizen TV platform.

Signed-off-by: wangjun <junx.j.wang@intel.com>
Added a new feature that an application can be previewed under all resolutions.

Signed-off-by: wangjun <junx.j.wang@intel.com>
Fixed CSP bug TC-1434.

Signed-off-by: wangjun <junx.j.wang@intel.com>
Merge pull request #407 from junwang1216/next

Implement the feature of multiple screens preview.