message: Add a new "create_java_proto" arg to tf_proto_library_cc.
  At the moment it does nothing, prepare for java protos.
diff: @@ -369,6 +369,7 @@ def tf_proto_library_cc(
  cc_api_version = 2,
  js_codegen = "jspb",
  create_service = False,
  + create_java_code = False,
  make_default_target_header_only = False):
  js_codegen = js_codegen # unused argument
  native.filegroup(
  @@ -377,7 +378,7 @@ def tf_proto_library_cc(
  testonly = testonly,
  visibility = visibility,
  )
  - _ignore = create_service
  + _ignore = (create_service, create_java_code)
  use_grpc_plugin = None
  if cc_grpc_version:
  