The commit consists of:

1) Support metadata (e.g. get-depth) for rpc request.
2) Support parameters in rpc requests
3) Generate the code for netconf rpc to Voltha grpc mapping
4) Initial Support custom rpc requests (those defined in the voltha YANG schemas).

Change-Id: I24dc7fd75b5f71d0d8591637579672b25fda57ec
diff --git a/netconf/nc_rpc/ext/get_schema.py b/netconf/nc_rpc/ext/get_schema.py
index 569a3b0..a90906e 100644
--- a/netconf/nc_rpc/ext/get_schema.py
+++ b/netconf/nc_rpc/ext/get_schema.py
@@ -26,8 +26,8 @@
 
 class GetSchema(Rpc):
     def __init__(self, request, request_xml, grpc_client, session, capabilities):
-        super(GetSchema, self).__init__(request, request_xml, grpc_client, session)
-        self.capabilities = capabilities
+        super(GetSchema, self).__init__(request, request_xml, grpc_client,
+                                        session, capabilities)
         # specific schema parsing required
         self.parse_schema_request(request_xml)
         self._validate_parameters()