Update po files

Signed-off-by: Aline Manera <alinefm@linux.vnet.ibm.com>
i18n support: Changed the file type of plugins/sample/po/LINGUAS

Changed the file type of plugins/sample/po/LINGUAS, that was a symbolic
link to po/LINGUAS, to be a "real" file containing only the three
languages (en_US, pt_BR, zh_CN) for the sample plugin.

This prevent the make command to use the Kimchi file to scan for other po
files in the sample plugin directory.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add German translation files.

Updated po/LINGUAS file to add German and added the po/de_DE.po file
with German translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add Spanish translation files.

Updated po/LINGUAS file to add Spanish and added the po/es_ES.po file
with Spanish translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add French translation files.

Updated po/LINGUAS file to add French and added the po/fr_FR.po file
with French translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add Italian translation files.

Updated po/LINGUAS file to add Italian and added the po/it_It.po file
with Italian translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add Japanese translation files.

Updated po/LINGUAS file to add Japanese and added the po/ja_JP.po file
with Japanese translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
18n support: Add Korean translation files.

Updated po/LINGUAS file to add Korean and added the po/ko_KR.po file
with Korean translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add Russian translation files.

Updated po/LINGUAS file to add Russian and added the po/ru_RU.po file
with Russian translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>
i18n support: Add Traditional Chinese translation files.

Updated po/LINGUAS file to add Traditional Chinese and added the
po/zh_Tw.po file with Traditional Chinese translation.

Signed-off-by: Paulo Vital <pvital@linux.vnet.ibm.com>