Add Dataflow path to generate overall monthly invoice

This forks off the results of the billing_events query from Bigquery and generates the overall invoice for the month.

This also turns the ad hoc beam binary into a proper Nomulus command, allowing us to @Inject from the RegsistryToolComponent and thus template the BillingEvent Bigquery query.

Next steps:
- Add the beam package to the open source build
  - That will likely require updates to the open source jars, since I'm using features from 2.2.0 which was only just released.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178798943

java/google/registry/tools/BUILD

@@ -36,6 +36,7 @@ java_library(
     visibility = [":allowed-tools"],
     deps = [
         "//java/google/registry/backup",
+        "//java/google/registry/beam",
         "//java/google/registry/bigquery",
         "//java/google/registry/config",
         "//java/google/registry/dns",

java/google/registry/tools/DeployInvoicingPipelineCommand.java

@@ -0,0 +1,31 @@
+// Copyright 2017 The Nomulus Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.tools;
+
+import com.beust.jcommander.Parameters;
+import google.registry.beam.InvoicingPipeline;
+import javax.inject.Inject;
+
+/** Nomulus command that deploys the {@link google.registry.beam.InvoicingPipeline} template. */
+@Parameters(commandDescription = "Deploy the invoicing pipeline to GCS.")
+public class DeployInvoicingPipelineCommand implements Command {
+
+  @Inject InvoicingPipeline invoicingPipeline;
+
+  @Override
+  public void run() throws Exception {
+    invoicingPipeline.deploy();
+  }
+}

java/google/registry/tools/RegistryTool.java

@@ -55,6 +55,7 @@ public final class RegistryTool {
           .put("delete_premium_list", DeletePremiumListCommand.class)
           .put("delete_reserved_list", DeleteReservedListCommand.class)
           .put("delete_tld", DeleteTldCommand.class)
+          .put("deploy_invoicing_pipeline", DeployInvoicingPipelineCommand.class)
           .put("domain_application_info", DomainApplicationInfoCommand.class)
           .put("domain_check", DomainCheckCommand.class)
           .put("domain_check_claims", DomainCheckClaimsCommand.class)

java/google/registry/tools/RegistryToolComponent.java

@@ -81,6 +81,7 @@ interface RegistryToolComponent {
   void inject(CreateDomainCommand command);
   void inject(CreateLrpTokensCommand command);
   void inject(CreateTldCommand command);
+  void inject(DeployInvoicingPipelineCommand command);
   void inject(EncryptEscrowDepositCommand command);
   void inject(GenerateApplicationsReportCommand command);
   void inject(GenerateDnsReportCommand command);