Refactor ICANN reporting and billing into common package

This moves the default yearMonth logic into a common ReportingModule, rather than the coarse-scoped BackendModule, which may not want the default parameter extraction logic, as well as moving the 'yearMonth' parameter constant to the common package it's used in. This also provides a basis for future consolidation of the ReportingEmailUtils and BillingEmailUtils classes, which have modest overlap.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=183130311

java/google/registry/reporting/billing/BUILD

@@ -0,0 +1,36 @@
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+licenses(["notice"])  # Apache 2.0
+
+java_library(
+    name = "billing",
+    srcs = glob(["*.java"]),
+    runtime_deps = [
+        "@com_google_apis_google_api_services_bigquery",
+    ],
+    deps = [
+        "//java/google/registry/config",
+        "//java/google/registry/gcs",
+        "//java/google/registry/model",
+        "//java/google/registry/reporting",
+        "//java/google/registry/request",
+        "//java/google/registry/request/auth",
+        "//java/google/registry/storage/drive",
+        "//java/google/registry/util",
+        "@com_google_api_client_appengine",
+        "@com_google_apis_google_api_services_dataflow",
+        "@com_google_appengine_api_1_0_sdk",
+        "@com_google_appengine_tools_appengine_gcs_client",
+        "@com_google_dagger",
+        "@com_google_guava",
+        "@com_google_http_client",
+        "@javax_servlet_api",
+        "@joda_time",
+        "@org_apache_beam_runners_direct_java",
+        "@org_apache_beam_runners_google_cloud_dataflow_java",
+        "@org_apache_beam_sdks_java_core",
+        "@org_apache_beam_sdks_java_io_google_cloud_platform",
+    ],
+)