[API Changed] Refine launch, uninstall API

[API Changed] Refine launch, uninstall API

[AS-IS]
- Installer should save data(1):"package-certs-path".
- Launcher should be able to get data(1) for using launch API.
- Installer should be able to get data(1) for using uninstall API.

[TO-BE]
- Installer does not need to save and get data(1).
- Launcher does not need to get data(1).

Change-Id: Ieeec21a62830d5a02e53c592999e041feef1dc5a
Signed-off-by: sangwan.kwon <sangwan.kwon@samsung.com>