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/keys/server.key b/netconf/security/keys/server.key
new file mode 100644
index 0000000..924a0df
--- /dev/null
+++ b/netconf/security/keys/server.key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+2jtRruW//DN/qkL13CelVgqWvQ/JwCLJVPIU0jBW6LOWc3w+ya4X+1FBtQs/EGy1
+7DI/1EFf7jl3sKfbQoDH+k2bN2y+tYt0Lf2d3u95OCkXkpqFLJ8wSSSeuys7zB3Q
+o3SPWaV5T/gSlU7wydAOU7ECgYEA1Pix3kVz7EfJbHvtAn9LmQAIYg7VXKtml9zj
+q4n9yn4PI2uLKk+3mKFYzSm5gA9nbuqjxqpU7rYeBuJKm9CbxAKA6G9MjBujZkNu
+OlzbibiiihhYO3F1TxlHj/Taj4SmJQoEt2wuMU4L+5GAah/4IxViGxWl/NdHmuAX
+WUAypWkCgYBKTm2Saam8hRi6Pc0T63a3RrBx0pu6TxLv9+7rqBYUaP9kRwZbVnc2
+AH7DW73ZLuVnQL0ymkkVzwDIn6skT322H3g0Cc+ducwLXZ2AaObQNflHoFtSiO85
+a0oWQOtmjqdYfbRIulSMbjQhZ/wAA5Ju4lJI5/0MOxFvfxK5WBNhZQ==
+-----END RSA PRIVATE KEY-----