userportal, webadmin: add ko-KR locale (part 1)

in this patch, changing the relevant files for user portal, webadmin and
welcome page in order to show the Korean (ko-KR) locale as available.

.properties files will be added in part 2.

Change-Id: Ie4f23d35c485a4ecc89ce6c261df0b11d61d155d
Signed-off-by: Einav Cohen <ecohen@redhat.com>