fixed synchronizer error "./run.sh: No such file or directory"
added back run.sh and stop.sh

Change-Id: Ib4c741b7dc8278c437091274435aad09e11092c2
(cherry picked from commit 759c7048a44641f16ae3eb33d3970548c86c419c)
diff --git a/xos/synchronizer/stop.sh b/xos/synchronizer/stop.sh
new file mode 100644
index 0000000..4444370
--- /dev/null
+++ b/xos/synchronizer/stop.sh
@@ -0,0 +1,2 @@
+# Kill the observer
+pkill -9 -f vsgw-synchronizer.py