append all start scripts into /etc/target/all_start.sh
append all start scripts into /etc/target/all_start.sh

This should make systemd packaging a little easier.

Signed-off-by: Andy Grover <b7d524d2f5cc5aebadb6b92b08d3ab26911cde33@redhat.com>

cvubrugier/targetcli-fb,cloud4life/targetcli-fb,agrover/targetcli-fb