Prepare a server socket of an application

Prepare a server socket of an application

- The launchpad socket path are changed to "/run/aul/daemons/<uid>/".
- Before executing an application, the child process creates an aul socket
of the application for communication. And then, the application uses the socket.
- Requires
[aul] https://review.tizen.org/gerrit/#/c/73534/
[amd] https://review.tizen.org/gerrit/#/c/73537/

Change-Id: I872b5faf1681725e51a3c5647ff1195ebeaabba9
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>