This is the initial commit of the netconf server code.  It consists
of the following:
1) The server is built using Twisted Conch
2) It adapted an existing opensource netconf server (https://github.com/choppsv1/netconf)
   to handle some low-level protocols.  The adaptation is mostly around
   using Twisted Conch instead of Python Threads
3) A microservice to interface with Voltha on the SB and Netconf client on
   the NB
4) A set of credentials for the server and clients.  At this time these
   credentials are local and in files.  Additional work is required to
   secure these files
5) A rough-in to handle the rpc requests from Netconf clients
6) Code for initial handshaking is in place (hello)

Change-Id: I1ca0505d0ac35ff06066b107019ae87ae30e38f8
diff --git a/netconf/security/client_credentials/id_rsa b/netconf/security/client_credentials/id_rsa
new file mode 100644
index 0000000..935df1f
--- /dev/null
+++ b/netconf/security/client_credentials/id_rsa
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----