Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/echo/plugin.yaml

@@ -0,0 +1,4 @@
+name: "echo"
+shortDesc: "Echoes for test-cmd"
+longDesc: "Long description for the test-cmd echo plugin"
+command: "echo This plugin works!"

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/env/env.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# Copyright 2017 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.
+
+env | grep 'KUBECTL_PLUGINS' | sort

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/env/plugin.yaml

@@ -0,0 +1,12 @@
+name: env
+shortDesc: "The plugin envs plugin"
+command: "./env.sh"
+flags: 
+  - name: "test1"
+    desc: "This is a flag 1"
+  - name: "test2"
+    desc: "This is a flag 2"
+    shorthand: "t"
+  - name: "test3"
+    desc: "This is a flag 3"
+    defValue: "default"

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/error/plugin.yaml

@@ -0,0 +1,3 @@
+name: "error"
+shortDesc: "The tremendous plugin that always fails!"
+command: "false"

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/get/plugin.yaml

@@ -0,0 +1,3 @@
+name: "get"
+shortDesc: "The wonderful new plugin-based get!"
+command: "echo new-get"

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/incomplete/plugin.yaml

@@ -0,0 +1,2 @@
+name: "incomplete"
+shortDesc: "Incomplete plugin"

vendor/k8s.io/kubernetes/test/fixtures/pkg/kubectl/plugins/tree/plugin.yaml

@@ -0,0 +1,13 @@
+name: "tree"
+shortDesc: "Plugin with a tree of commands"
+tree:
+  - name: "child1"
+    shortDesc: "The first child of a tree"
+    command: echo child one
+  - name: "child2"
+    shortDesc: "The second child of a tree"
+    command: echo child two
+  - name: "child3"
+    shortDesc: "The third child of a tree"
+    command: echo child three
+