Support of debian packaging with versioning for openvim and ovim library; dealing with openflow exec; inclusion of README.rst for both; service file and postinst file added for openvim

Change-Id: Iaa42a592bf8c372c3429fe6a5e556537ec3c9559
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/osm_openvim/osm-openvim.service b/osm_openvim/osm-openvim.service
new file mode 100644
index 0000000..4431c6b
--- /dev/null
+++ b/osm_openvim/osm-openvim.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=openvim server
+
+[Service]
+User=${USER_OWNER}
+ExecStart=openvimd -c /etc/osm/openvimd.cfg --log-file=/var/log/osm/openvim.log
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+