Fix dali-demo SIGKILL issue

Fix dali-demo SIGKILL issue

Use capi-appfw-appcontrol instead of unix default fork().
If process group is connected, AMD check whole of them as same process.
So even if child process call ecore_shutdown, it's parent process also killed after 5 seconds later.
That's why dali-examples / com.samsung.dali-demo got SIGKILL from amd.

This patch separate execute logic between unix and tizen by -DTIZEN:BOOL=ON option.
TIZEN will be set ON only at packaging/com.samsung.dali-demo.spec

NOTE. app_control_send_launch_request need privilege 'http://tizen.org/privilege/appmanager.launch'.

Change-Id: I1d37a21f0d3091c0dc2fcbb4806900256e464aa5
Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>