[webapi] update file name for messaging
[usecase] Notification ivi tests merge to usecase tizen

- Notification ivi manual tests to merge to use-case tizen notification.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 1, Fail 0, Blocked 0
[webapi] Merge notification ivi tests to use case

- This notification ivi have been merged to use case in PR-488, so remove them
Merge pull request #482 from JianfengXu/xujf/message/fix

[webapi] update file name for messaging
[wrt] Remove unused case and space
Merge pull request #497 from kangxu/kangxu/wrt/wrt-packertool-android-tests/update

[wrt] Remove unused case and space
Merge pull request #488 from xinliux/xinliux/usecase/notification-merge

[usecase] Notification ivi tests merge to usecase tizen
Merge pull request #489 from xinliux/xinliux/webapi/notification-ivi-remove

[webapi] Merge notification ivi tests to use case