Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/k8s.io/kubernetes/cmd/libs/go2idl/set-gen/.gitignore

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+set-gen

vendor/k8s.io/kubernetes/cmd/libs/go2idl/set-gen/BUILD

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+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_binary",
+    "go_library",
+)
+
+go_binary(
+    name = "set-gen",
+    library = ":go_default_library",
+    tags = ["automanaged"],
+)
+
+exports_files([
+    "types.go",
+])
+
+go_library(
+    name = "go_default_library",
+    srcs = ["main.go"],
+    tags = ["automanaged"],
+    deps = [
+        "//vendor:github.com/golang/glog",
+        "//vendor:k8s.io/gengo/args",
+        "//vendor:k8s.io/gengo/examples/set-gen/generators",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/cmd/libs/go2idl/set-gen/main.go

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+/*
+Copyright 2015 The Kubernetes Authors.
+
+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.
+*/
+
+// set-gen is an example usage of go2idl.
+//
+// Structs in the input directories with the below line in their comments will
+// have sets generated for them.
+// // +genset
+//
+// Any builtin type referenced anywhere in the input directories will have a
+// set generated for it.
+package main
+
+import (
+	"os"
+	"path/filepath"
+
+	"k8s.io/gengo/args"
+	"k8s.io/gengo/examples/set-gen/generators"
+
+	"github.com/golang/glog"
+)
+
+func main() {
+	arguments := args.Default()
+
+	// Override defaults. These are Kubernetes specific input and output
+	// locations.
+	arguments.InputDirs = []string{"k8s.io/kubernetes/pkg/util/sets/types"}
+	arguments.OutputPackagePath = "k8s.io/kubernetes/pkg/util/sets"
+	arguments.GoHeaderFilePath = filepath.Join(args.DefaultSourceTree(), "k8s.io/kubernetes/hack/boilerplate/boilerplate.go.txt")
+
+	if err := arguments.Execute(
+		generators.NameSystems(),
+		generators.DefaultNameSystem(),
+		generators.Packages,
+	); err != nil {
+		glog.Errorf("Error: %v", err)
+		os.Exit(1)
+	}
+	glog.V(2).Info("Completed successfully.")
+}