Merge pull request #41146 from shiywang/apply-view1

Automatic merge from submit-queue (batch tested with PRs 41146, 41486, 41482, 41538, 41784)

 Add apply view-last-applied subcommand

reopen pr https://github.com/kubernetes/kubernetes/pull/40984, implement part of https://github.com/kubernetes/community/pull/287
for now unit test all pass, the output looks like:

```console
shiywang@dhcp-140-33 template $ ./kubectl apply view last-applied deployment nginx-deployment 
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  creationTimestamp: null
  name: nginx-deployment
spec:
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: nginx
    spec:
      containers:
      - image: nginx:1.12.10
        name: nginx
        ports:
        - containerPort: 80
        resources: {}
status: {}
```

```release-note
Support new kubectl apply view-last-applied command for viewing the last configuration file applied
```

not sure if there is any flag I should updated or the some error handling I should changed.
will generate docs when you guys think is ok.
cc @pwittrock @jessfraz @AdoHe @ymqytw

test/fixtures/pkg/kubectl/cmd/apply/rc-lastapplied.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  annotations:
+    kubectl.kubernetes.io/last-applied-configuration: |
+      {"test":1234}
+  name: test-rc
+  labels:
+    name: test-rc
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        name: test-rc
+    spec:
+      containers:
+        - name: test-rc
+          image: nginx
+          ports:
+          - containerPort: 80