[COMMON] Fix shell scripts missing shebangs

pointed out by checkbashisms.

$ tox -e checkbashisms |grep 'interpreter line' | cut -d' ' -f2
  |xargs grep -lv '#!/bin/sh' | xargs sed -i -e '1i#!/bin/sh' -e '1i\\'

plus manual fixes

Issue-ID: OOM-2643
Signed-off-by: Guillaume Lambert <guillaume.lambert@orange.com>
Change-Id: Ic41fec6ebadd162cecf889f2b119ac82551bd21d
diff --git a/kubernetes/consul/resources/config/consul-agent-config/scripts/data-router-script.sh b/kubernetes/consul/resources/config/consul-agent-config/scripts/data-router-script.sh
index cd154da..2e0078c 100755
--- a/kubernetes/consul/resources/config/consul-agent-config/scripts/data-router-script.sh
+++ b/kubernetes/consul/resources/config/consul-agent-config/scripts/data-router-script.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 {{/*
 # Copyright © 2018  AT&T, Amdocs, Bell Canada Intellectual Property.  All rights reserved.
 #