[Xfce-i18n] Added / Updated Korean translation for all packages

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I've started translation about 1 month ago, and I've finished for all packages.

so I want to tell all developer, find my translation (except midori,
because this package is translated by another member) and apply.

If my translation script has problem, tell me about it for fixing the
problem caused by translation script.

Thank you for all members' effort and good software.