Merge pull request #46091 from xilabao/new-output-in-edit

Automatic merge from submit-queue (batch tested with PRs 46091, 48280)

allow output patch string in edit command

**What this PR does / why we need it**:
allow user to get the patch from edit command if user is not familiar with the patch format.

```
# ./cluster/kubectl.sh create role a --verb=get,list --resource=no
role "a" created

# ./cluster/kubectl.sh edit role a --output-patch=true
Patch: {"rules":[{"apiGroups":[""],"resources":["nodes"],"verbs":["get","list","delete"]}]}
role "a" edited

# ./cluster/kubectl.sh create role b --verb=get,list --resource=no
role "b" created

# ./cluster/kubectl.sh patch role b -p '{"rules":[{"apiGroups":[""],"resources":["nodes"],"verbs":["get","list","delete"]}]}'
role "b" patched
```
**Which issue this PR fixes**: fixes #47173

**Special notes for your reviewer**:

**Release note**:

```release-note
Could get the patch from kubectl edit command
```

hack/verify-flags/known-flags.txt

@@ -526,6 +526,7 @@ output-base
 output-directory
 output-file-base
 output-package
+output-patch
 output-print-type
 output-version
 out-version