Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Adds initial Korean translations for kubectl
**What this PR does / why we need it**:
This PR provides a first attempt to translate kubectl in Korean (related to #51867, #40645, #45573, #45562, #40591, #46559, #50155).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
No issues
**Special notes for your reviewer**:
This PR requires Korean people to assist in the review. I am native in Korean and also a translator & reviewer in Korean in OpenStack I18n team (http://stackalytics.com/?metric=translations&user_id=ianychoi ).
**Release note**:
```release-note
Adding initial Korean translation for kubectl
```
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