Preliminary Commit to secure communication between Registrator and Consul

 -- This is just a prep work for :
        https://jira.opencord.org/browse/VOL-155,
      & https://jira.opencord.org/browse/VOL-154.
    Consul & Registrator - We just have to package the PKI files and Enable TLS.

 -- Consul Start-Up Logs
 ======================
ssl.josn
=============
{
  "ca_file": "/consul/config/voltha-CA-template.pem",
  "cert_file": "/consul/config/voltha-cert-template.crt",
  "key_file": "/consul/config/voltha-pvt-template.key",
  "verify_incoming": true,
  "verify_outgoing": true
}
Consul Start-up logs..
==========================

==> Starting Consul agent...
==> Consul agent running!
           Version: 'v0.8.3'
           Node ID: 'fc5cb7d0-106a-fa68-441f-251c5952d16c'
         Node name: 'ca6ebcd10ce5'
        Datacenter: 'dc1'
            Server: true (bootstrap: true)
       Client Addr: 0.0.0.0 (HTTP: 8501, HTTPS: 8500, DNS: 8600)
      Cluster Addr: 172.18.0.4 (LAN: 8301, WAN: 8302)
    Gossip encrypt: true, RPC-TLS: true, TLS-Incoming: true
             Atlas: <disabled>

==> Log data will now stream in as it occurs:
======================

ssl.josn
=============
{
  "ca_file": "/consul/config/voltha-CA-template.pem",
  "cert_file": "/consul/config/voltha-cert-template.crt",
  "key_file": "/consul/config/voltha-pvt-template.key",
  "verify_incoming": false,
  "verify_outgoing": false
}
Consul Start-up logs..
==========================

==> WARNING: LAN keyring exists but -encrypt given, using keyring
==> WARNING: WAN keyring exists but -encrypt given, using keyring
==> WARNING: Bootstrap mode enabled! Do not enable unless necessary
==> Starting Consul agent...
==> Consul agent running!
           Version: 'v0.8.3'
           Node ID: 'fc5cb7d0-106a-fa68-441f-251c5952d16c'
         Node name: 'ca6ebcd10ce5'
        Datacenter: 'dc1'
            Server: true (bootstrap: true)
       Client Addr: 0.0.0.0 (HTTP: 8501, HTTPS: 8500, DNS: 8600)
      Cluster Addr: 172.18.0.6 (LAN: 8301, WAN: 8302)
    Gossip encrypt: true, RPC-TLS: false, TLS-Incoming: false
             Atlas: <disabled>

Change-Id: I8acc9b680019076843f8b9b331c72d7a9b973bb1
diff --git a/consul_config/voltha-cert-template.crt b/consul_config/voltha-cert-template.crt
new file mode 100755
index 0000000..587c562
--- /dev/null
+++ b/consul_config/voltha-cert-template.crt
@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
+MIIDqzCCApMCCQCX5iDODvryVzANBgkqhkiG9w0BAQsFADCBkzELMAkGA1UEBhMC
+QUExCzAJBgNVBAgMAkJCMQswCQYDVQQHDAJDQzERMA8GA1UECgwISUNlcnRpZnkx
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++j/fp91c7bsgHy4PKtupwOeUHkOM3ZcxU7KrX53BZmylJVXqE9otDTljTqhj6F4x
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+r7MBk755BjMNa3KKT/BFQRl6kwCK0G7FQI5EPiFXyt08anXDVThRd+2q21GLpqRP
+uh7qvFhLcmglCQsfSXFwvdL6v8LCS1EDNOlSncnLCgjXCefU9DakEtbvnl96RQ4m
+BQeIaGjY+9ZWq30BqVer3MiZfIvBZnWvEIA/RLCzbxttr6KsOrQWW3WvntpIK6bo
+0eIhTC/EDuEgorvjPxOfOHklNdTuAY/sjofuHPrctw==
+-----END CERTIFICATE-----