packaging: engine-service: move service out of fedora into own directory

service is working in fedora, rhel, cenots, gentoo, ubuntu.

service resources are installed at one directory at target, reorder
filesystem structure within source tree to be similar.

Change-Id: I38c2653509795ae04c190c4a84f00f53410fa983
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>