Add support for v0.11 GRPC services

This also refactors the client GRPC wrapper to dynamically load the
request objects.
All GRPC generated client files now live under lib/grpc_services

lib/grpc_services/autopilotrpc/autopilot_services_pb.rb

@@ -0,0 +1,40 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# Source: autopilotrpc/autopilot.proto for package 'autopilotrpc'
+
+require 'grpc'
+require 'autopilotrpc/autopilot_pb'
+
+module Autopilotrpc
+  module Autopilot
+    # Autopilot is a service that can be used to get information about the current
+    # state of the daemon's autopilot agent, and also supply it with information
+    # that can be used when deciding where to open channels.
+    class Service
+
+      include GRPC::GenericService
+
+      self.marshal_class_method = :encode
+      self.unmarshal_class_method = :decode
+      self.service_name = 'autopilotrpc.Autopilot'
+
+      #
+      # Status returns whether the daemon's autopilot agent is active.
+      rpc :Status, StatusRequest, StatusResponse
+      #
+      # ModifyStatus is used to modify the status of the autopilot agent, like
+      # enabling or disabling it.
+      rpc :ModifyStatus, ModifyStatusRequest, ModifyStatusResponse
+      #
+      # QueryScores queries all available autopilot heuristics, in addition to any
+      # active combination of these heruristics, for the scores they would give to
+      # the given nodes.
+      rpc :QueryScores, QueryScoresRequest, QueryScoresResponse
+      #
+      # SetScores attempts to set the scores used by the running autopilot agent,
+      # if the external scoring heuristic is enabled.
+      rpc :SetScores, SetScoresRequest, SetScoresResponse
+    end
+
+    Stub = Service.rpc_stub_class
+  end
+end