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/signrpc/signer_pb.rb

@@ -0,0 +1,83 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: signrpc/signer.proto
+
+require 'google/protobuf'
+
+Google::Protobuf::DescriptorPool.generated_pool.build do
+  add_file("signrpc/signer.proto", :syntax => :proto3) do
+    add_message "signrpc.KeyLocator" do
+      optional :key_family, :int32, 1
+      optional :key_index, :int32, 2
+    end
+    add_message "signrpc.KeyDescriptor" do
+      optional :raw_key_bytes, :bytes, 1
+      optional :key_loc, :message, 2, "signrpc.KeyLocator"
+    end
+    add_message "signrpc.TxOut" do
+      optional :value, :int64, 1
+      optional :pk_script, :bytes, 2
+    end
+    add_message "signrpc.SignDescriptor" do
+      optional :key_desc, :message, 1, "signrpc.KeyDescriptor"
+      optional :single_tweak, :bytes, 2
+      optional :double_tweak, :bytes, 3
+      optional :witness_script, :bytes, 4
+      optional :output, :message, 5, "signrpc.TxOut"
+      optional :sighash, :uint32, 7
+      optional :input_index, :int32, 8
+    end
+    add_message "signrpc.SignReq" do
+      optional :raw_tx_bytes, :bytes, 1
+      repeated :sign_descs, :message, 2, "signrpc.SignDescriptor"
+    end
+    add_message "signrpc.SignResp" do
+      repeated :raw_sigs, :bytes, 1
+    end
+    add_message "signrpc.InputScript" do
+      repeated :witness, :bytes, 1
+      optional :sig_script, :bytes, 2
+    end
+    add_message "signrpc.InputScriptResp" do
+      repeated :input_scripts, :message, 1, "signrpc.InputScript"
+    end
+    add_message "signrpc.SignMessageReq" do
+      optional :msg, :bytes, 1
+      optional :key_loc, :message, 2, "signrpc.KeyLocator"
+    end
+    add_message "signrpc.SignMessageResp" do
+      optional :signature, :bytes, 1
+    end
+    add_message "signrpc.VerifyMessageReq" do
+      optional :msg, :bytes, 1
+      optional :signature, :bytes, 2
+      optional :pubkey, :bytes, 3
+    end
+    add_message "signrpc.VerifyMessageResp" do
+      optional :valid, :bool, 1
+    end
+    add_message "signrpc.SharedKeyRequest" do
+      optional :ephemeral_pubkey, :bytes, 1
+      optional :key_loc, :message, 2, "signrpc.KeyLocator"
+    end
+    add_message "signrpc.SharedKeyResponse" do
+      optional :shared_key, :bytes, 1
+    end
+  end
+end
+
+module Signrpc
+  KeyLocator = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.KeyLocator").msgclass
+  KeyDescriptor = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.KeyDescriptor").msgclass
+  TxOut = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.TxOut").msgclass
+  SignDescriptor = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SignDescriptor").msgclass
+  SignReq = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SignReq").msgclass
+  SignResp = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SignResp").msgclass
+  InputScript = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.InputScript").msgclass
+  InputScriptResp = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.InputScriptResp").msgclass
+  SignMessageReq = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SignMessageReq").msgclass
+  SignMessageResp = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SignMessageResp").msgclass
+  VerifyMessageReq = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.VerifyMessageReq").msgclass
+  VerifyMessageResp = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.VerifyMessageResp").msgclass
+  SharedKeyRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SharedKeyRequest").msgclass
+  SharedKeyResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("signrpc.SharedKeyResponse").msgclass
+end