pam*: add Korean translation (#14633)

* pam*: add Korean translation

* Update pages.ko/common/pambrighten.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/pamdice.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/pampop9.md

Co-authored-by: Chooooo <contact@choo.ooo>

---------

Co-authored-by: Chooooo <contact@choo.ooo>

pages.ko/common/pamtoqoi.md

@@ -0,0 +1,8 @@
+# pamtoqoi
+
+> Netpbm 이미지를 QOI 이미지(Quite OK Image 형식)로 변환.
+> 더 많은 정보: <https://netpbm.sourceforge.net/doc/pamtoqoi.html>.
+
+- Netpbm 이미지를 QOI 형식으로 변환:
+
+`pamtoqoi {{경로/대상/이미지.pnm}} > {{경로/대상/출력.qoi}}`