Migrate to new Sheets v4 api

This moves us from the oudated google/data XML api to the OnePlatform REST/JSON api, finally silencing the deprecation warnings we've been seeing.

The synchronization algorithm diffs the spreadsheet's current values with its internally sourced values, adding the row to a batch update request if there's a discrepancy. Additional internal data are added as an append operation to the end of the sheet, and any extraneous spreadsheet data is cleared from the spreadsheet.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=169273590

java/google/registry/export/sheet/SheetsServiceModule.java

@@ -0,0 +1,42 @@
+// 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.export.sheet;
+
+import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.services.sheets.v4.Sheets;
+import com.google.common.collect.ImmutableList;
+import dagger.Module;
+import dagger.Provides;
+import google.registry.config.RegistryConfig.Config;
+
+/** Dagger module for {@link Sheets}. */
+@Module
+public final class SheetsServiceModule {
+
+  private static final ImmutableList<String> SCOPES = ImmutableList.of(
+      "https://www.googleapis.com/auth/spreadsheets");
+  @Provides
+  static Sheets provideSheets(
+      HttpTransport transport,
+      JsonFactory jsonFactory,
+      @Config("projectId") String projectId,
+      GoogleCredential credential) {
+    return new Sheets.Builder(transport, jsonFactory, credential.createScoped(SCOPES))
+        .setApplicationName(projectId)
+        .build();
+  }
+}